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102242520453 = 31719283372839
BaseRepresentation
bin101111100111000100…
…0010000110110000101
3100202220110100011222210
41133032020100312011
53133343041123303
6114545232014033
710246444041003
oct1371610206605
9322813304883
10102242520453
113a3a7267997
1217994991319
1398452aac18
144d3cc09a73
1529d6055203
hex17ce210d85

102242520453 has 32 divisors (see below), whose sum is σ = 152476646400. Its totient is φ = 60560822016.

The previous prime is 102242520421. The next prime is 102242520461. The reversal of 102242520453 is 354025242201.

It is not a de Polignac number, because 102242520453 - 25 = 102242520421 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102242520453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102242520463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 87808 + ... + 460646.

It is an arithmetic number, because the mean of its divisors is an integer number (4764895200).

Almost surely, 2102242520453 is an apocalyptic number.

It is an amenable number.

102242520453 is a deficient number, since it is larger than the sum of its proper divisors (50234125947).

102242520453 is a wasteful number, since it uses less digits than its factorization.

102242520453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373161.

The product of its (nonzero) digits is 19200, while the sum is 30.

Adding to 102242520453 its reverse (354025242201), we get a palindrome (456267762654).

The spelling of 102242520453 in words is "one hundred two billion, two hundred forty-two million, five hundred twenty thousand, four hundred fifty-three".

Divisors: 1 3 17 19 51 57 283 323 849 969 4811 5377 14433 16131 91409 274227 372839 1118517 6338263 7083941 19014789 21251823 105513437 120426997 316540311 361280991 1793728429 2004755303 5381185287 6014265909 34080840151 102242520453