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102021131032 = 2312752641379
BaseRepresentation
bin101111100000011101…
…1101110101100011000
3100202100000202102210121
41133000323232230120
53132414402143112
6114511242523024
710241115206542
oct1370073565430
9322300672717
10102021131032
113a2a32a5827
1217932806474
13980b474c72
144d1b65a692
1529c18c3407
hex17c0eeeb18

102021131032 has 8 divisors (see below), whose sum is σ = 191289620700. Its totient is φ = 51010565512.

The previous prime is 102021131021. The next prime is 102021131041. The reversal of 102021131032 is 230131120201.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×1020211310322 (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102021130997 and 102021131015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6376320682 + ... + 6376320697.

Almost surely, 2102021131032 is an apocalyptic number.

It is an amenable number.

102021131032 is a deficient number, since it is larger than the sum of its proper divisors (89268489668).

102021131032 is a wasteful number, since it uses less digits than its factorization.

102021131032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12752641385 (or 12752641381 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 102021131032 its reverse (230131120201), we get a palindrome (332152251233).

The spelling of 102021131032 in words is "one hundred two billion, twenty-one million, one hundred thirty-one thousand, thirty-two".

Divisors: 1 2 4 8 12752641379 25505282758 51010565516 102021131032