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102262161 = 31913912907
BaseRepresentation
bin1100001100001…
…10010110010001
321010102110022110
412012012112101
5202134342121
614051455533
72351133261
oct606062621
9233373273
10102262161
11527a7091
122a2b75a9
1318256371
14d81d7a1
158e9ed76
hex6186591

102262161 has 16 divisors (see below), whose sum is σ = 144569600. Its totient is φ = 64117008.

The previous prime is 102262141. The next prime is 102262187. The reversal of 102262161 is 161262201.

It is not a de Polignac number, because 102262161 - 25 = 102262129 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (102262141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1470 + ... + 14376.

It is an arithmetic number, because the mean of its divisors is an integer number (9035600).

Almost surely, 2102262161 is an apocalyptic number.

It is an amenable number.

102262161 is a deficient number, since it is larger than the sum of its proper divisors (42307439).

102262161 is a wasteful number, since it uses less digits than its factorization.

102262161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13068.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 102262161 is about 10112.4755129493. The cubic root of 102262161 is about 467.6328252703.

The spelling of 102262161 in words is "one hundred two million, two hundred sixty-two thousand, one hundred sixty-one".

Divisors: 1 3 19 57 139 417 2641 7923 12907 38721 245233 735699 1794073 5382219 34087387 102262161