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108637907548401 = 3272112451212
BaseRepresentation
bin11000101100111000111011…
…111000110111100011110001
3112020122200102120021222011100
4120230320323320313203301
5103214410413313022101
61023015322111235013
731611554423642400
oct3054707370674361
9466580376258140
10108637907548401
1131685094699100
1210226907518a69
1348806840a29ca
141cb816205d637
15c85dc4513e86
hex62ce3be378f1

108637907548401 has 81 divisors (see below), whose sum is σ = 200648956992939. Its totient is φ = 56434025894400.

The previous prime is 108637907548327. The next prime is 108637907548553. The reversal of 108637907548401 is 104845709736801.

The square root of 108637907548401 is 10422951.

It is a perfect power (a square), and thus also a powerful number.

108637907548401 is a `hidden beast` number, since 1 + 0 + 8 + 6 + 37 + 90 + 75 + 48 + 401 = 666.

It can be written as a sum of positive squares in only one way, i.e., 4012013006001 + 104625894542400 = 2003001^2 + 10228680^2 .

It is not a de Polignac number, because 108637907548401 - 231 = 108635760064753 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (108637907528401) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 2407679121 + ... + 2407724241.

Almost surely, 2108637907548401 is an apocalyptic number.

108637907548401 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

108637907548401 is the 10422951-st square number.

108637907548401 is the 5211476-th centered octagonal number.

It is an amenable number.

108637907548401 is a deficient number, since it is larger than the sum of its proper divisors (92011049444538).

108637907548401 is an frugal number, since it uses more digits than its factorization.

108637907548401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90284 (or 45142 counting only the distinct ones).

The product of its (nonzero) digits is 40642560, while the sum is 63.

The spelling of 108637907548401 in words is "one hundred eight trillion, six hundred thirty-seven billion, nine hundred seven million, five hundred forty-eight thousand, four hundred one".

Divisors: 1 3 7 9 11 21 33 49 63 77 99 121 147 231 363 441 539 693 847 1089 1617 2541 4851 5929 7623 17787 45121 53361 135363 315847 406089 496331 947541 1488993 2210929 2842623 3474317 4466979 5459641 6632787 10422951 16378923 19898361 24320219 31268853 38217487 49136769 72960657 114652461 218881971 267522409 343957383 802567227 2035904641 2407701681 6107713923 14251332487 18323141769 22394951051 42753997461 67184853153 99759327409 128261992383 156764657357 201554559459 246344461561 299277982227 470293972071 739033384683 897833946681 1097352601499 1410881916213 1724411230927 2217100154049 3292057804497 5173233692781 9876173413491 12070878616489 15519701078343 36212635849467 108637907548401