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103218630772 = 22712771312079
BaseRepresentation
bin110000000100001001…
…1110101000001110100
3100212102111001201121211
41200020103311001310
53142342432141042
6115230141251204
710312565612455
oct1401023650164
9325374051554
10103218630772
113a858254034
1218007863b04
13996c5a23aa
144dd26d912c
152a41ab8017
hex18084f5074

103218630772 has 24 divisors (see below), whose sum is σ = 183838152960. Its totient is φ = 50698693920.

The previous prime is 103218630743. The next prime is 103218630797. The reversal of 103218630772 is 277036812301.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 577372 + ... + 734707.

It is an arithmetic number, because the mean of its divisors is an integer number (7659923040).

Almost surely, 2103218630772 is an apocalyptic number.

It is an amenable number.

103218630772 is a deficient number, since it is larger than the sum of its proper divisors (80619522188).

103218630772 is a wasteful number, since it uses less digits than its factorization.

103218630772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1312431 (or 1312429 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 40.

The spelling of 103218630772 in words is "one hundred three billion, two hundred eighteen million, six hundred thirty thousand, seven hundred seventy-two".

Divisors: 1 2 4 71 142 277 284 554 1108 19667 39334 78668 1312079 2624158 5248316 93157609 186315218 363445883 372630436 726891766 1453783532 25804657693 51609315386 103218630772