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102242553 = 37191511697
BaseRepresentation
bin1100001100000…
…01100011111001
321010101110102020
412012001203321
5202133230203
614051225053
72351022150
oct606014371
9233343366
10102242553
1152793386
122a2a8189
131824a46a
14d816597
158e99153
hex61818f9

102242553 has 32 divisors (see below), whose sum is σ = 165181440. Its totient is φ = 54950400.

The previous prime is 102242551. The next prime is 102242579. The reversal of 102242553 is 355242201.

It is not a de Polignac number, because 102242553 - 21 = 102242551 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102242551) 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, 59401 + ... + 61097.

It is an arithmetic number, because the mean of its divisors is an integer number (5161920).

Almost surely, 2102242553 is an apocalyptic number.

It is an amenable number.

102242553 is a deficient number, since it is larger than the sum of its proper divisors (62938887).

102242553 is a wasteful number, since it uses less digits than its factorization.

102242553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1877.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 102242553 is about 10111.5059709224. The cubic root of 102242553 is about 467.6029350012.

Adding to 102242553 its reverse (355242201), we get a palindrome (457484754).

The spelling of 102242553 in words is "one hundred two million, two hundred forty-two thousand, five hundred fifty-three".

Divisors: 1 3 7 19 21 57 133 151 399 453 1057 1697 2869 3171 5091 8607 11879 20083 32243 35637 60249 96729 225701 256247 677103 768741 1793729 4868693 5381187 14606079 34080851 102242553