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102540796 = 22195325457
BaseRepresentation
bin1100001110010…
…10010111111100
321010221121112021
412013022113330
5202222301141
614101445524
72353403521
oct607122774
9233847467
10102540796
1152977466
122a4108a4
1318323137
14d893148
1590076d1
hex61ca5fc

102540796 has 24 divisors (see below), whose sum is σ = 192462480. Its totient is φ = 47653632.

The previous prime is 102540791. The next prime is 102540803. The reversal of 102540796 is 697045201.

It is a super-2 number, since 2×1025407962 = 21029229688627232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102540791) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8701 + ... + 16756.

It is an arithmetic number, because the mean of its divisors is an integer number (8019270).

Almost surely, 2102540796 is an apocalyptic number.

It is an amenable number.

102540796 is a deficient number, since it is larger than the sum of its proper divisors (89921684).

102540796 is a wasteful number, since it uses less digits than its factorization.

102540796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25533 (or 25531 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 102540796 is about 10126.2429360548. The cubic root of 102540796 is about 468.0571617909.

Adding to 102540796 its reverse (697045201), we get a palindrome (799585997).

The spelling of 102540796 in words is "one hundred two million, five hundred forty thousand, seven hundred ninety-six".

Divisors: 1 2 4 19 38 53 76 106 212 1007 2014 4028 25457 50914 101828 483683 967366 1349221 1934732 2698442 5396884 25635199 51270398 102540796