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102670986 = 23112576053
BaseRepresentation
bin1100001111010…
…10001010001010
321011012020010010
412013222022022
5202240432421
614104332350
72354455215
oct607521212
9234166103
10102670986
1152a56260
122a4740b6
131836a482
14d8c877c
159031076
hex61ea28a

102670986 has 32 divisors (see below), whose sum is σ = 224918208. Its totient is φ = 30986240.

The previous prime is 102670979. The next prime is 102671021. The reversal of 102670986 is 689076201.

It is a super-4 number, since 4×1026709864 (a number of 33 digits) contains 4444 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13936 + ... + 19988.

It is an arithmetic number, because the mean of its divisors is an integer number (7028694).

Almost surely, 2102670986 is an apocalyptic number.

102670986 is an abundant number, since it is smaller than the sum of its proper divisors (122247222).

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

102670986 is a wasteful number, since it uses less digits than its factorization.

102670986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6326.

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 102670986 is about 10132.6692435903. The cubic root of 102670986 is about 468.2551662059.

The spelling of 102670986 in words is "one hundred two million, six hundred seventy thousand, nine hundred eighty-six".

Divisors: 1 2 3 6 11 22 33 66 257 514 771 1542 2827 5654 6053 8481 12106 16962 18159 36318 66583 133166 199749 399498 1555621 3111242 4666863 9333726 17111831 34223662 51335493 102670986