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102207441 = 37191272017
BaseRepresentation
bin1100001011110…
…00111111010001
321010022200020210
412011320333101
5202131114231
614050354333
72350514610
oct605707721
9233280223
10102207441
1152769a66
122a28b9a9
131823749b
14d807877
158e8da46
hex6178fd1

102207441 has 32 divisors (see below), whose sum is σ = 165314560. Its totient is φ = 54867456.

The previous prime is 102207437. The next prime is 102207461. The reversal of 102207441 is 144702201.

It is a happy number.

It is not a de Polignac number, because 102207441 - 22 = 102207437 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102207401) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 49665 + ... + 51681.

It is an arithmetic number, because the mean of its divisors is an integer number (5166080).

Almost surely, 2102207441 is an apocalyptic number.

It is an amenable number.

102207441 is a deficient number, since it is larger than the sum of its proper divisors (63107119).

102207441 is a wasteful number, since it uses less digits than its factorization.

102207441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2173.

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 102207441 is about 10109.7695819440. The cubic root of 102207441 is about 467.5494010156.

Adding to 102207441 its reverse (144702201), we get a palindrome (246909642).

The spelling of 102207441 in words is "one hundred two million, two hundred seven thousand, four hundred forty-one".

Divisors: 1 3 7 19 21 57 127 133 381 399 889 2017 2413 2667 6051 7239 14119 16891 38323 42357 50673 114969 256159 268261 768477 804783 1793113 4867021 5379339 14601063 34069147 102207441