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34025665660 = 2257243180557
BaseRepresentation
bin11111101100000101…
…100111010001111100
310020211022021220111021
4133230011213101330
51024141032300120
623344200033524
72313121246300
oct375405472174
9106738256437
1034025665660
1113480668248
1267171628a4
13329340199c
14190ad5dd00
15d4226daaa
hex7ec16747c

34025665660 has 72 divisors (see below), whose sum is σ = 83313728064. Its totient is φ = 11638730880.

The previous prime is 34025665649. The next prime is 34025665673. The reversal of 34025665660 is 6656652043.

It is a super-2 number, since 2×340256656602 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 382102 + ... + 462658.

It is an arithmetic number, because the mean of its divisors is an integer number (1157135112).

Almost surely, 234025665660 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 34025665660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41656864032).

34025665660 is an abundant number, since it is smaller than the sum of its proper divisors (49288062404).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

34025665660 is a wasteful number, since it uses less digits than its factorization.

34025665660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81011 (or 81002 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 43.

The spelling of 34025665660 in words is "thirty-four billion, twenty-five million, six hundred sixty-five thousand, six hundred sixty".

Divisors: 1 2 4 5 7 10 14 20 28 35 49 70 98 140 196 245 431 490 862 980 1724 2155 3017 4310 6034 8620 12068 15085 21119 30170 42238 60340 80557 84476 105595 161114 211190 322228 402785 422380 563899 805570 1127798 1611140 2255596 2819495 3947293 5638990 7894586 11277980 15789172 19736465 34720067 39472930 69440134 78945860 138880268 173600335 243040469 347200670 486080938 694401340 972161876 1215202345 1701283283 2430404690 3402566566 4860809380 6805133132 8506416415 17012832830 34025665660