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102252043420 = 22511359975533
BaseRepresentation
bin101111100111010110…
…0100101110010011100
3100202221010021000001021
41133032230211302130
53133403010342140
6114550212053524
710246621012522
oct1371654456234
9322833230037
10102252043420
113a40168170a
12179980042a4
139847263607
144d401a8312
1529d6cd6b4a
hex17ceb25c9c

102252043420 has 48 divisors (see below), whose sum is σ = 216994075200. Its totient is φ = 40470649856.

The previous prime is 102252043393. The next prime is 102252043433. The reversal of 102252043420 is 24340252201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1315974 + ... + 1391506.

It is an arithmetic number, because the mean of its divisors is an integer number (4520709900).

Almost surely, 2102252043420 is an apocalyptic number.

102252043420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102252043420 is an abundant number, since it is smaller than the sum of its proper divisors (114742031780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102252043420 is a wasteful number, since it uses less digits than its factorization.

102252043420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76254 (or 76252 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

Adding to 102252043420 its reverse (24340252201), we get a palindrome (126592295621).

The spelling of 102252043420 in words is "one hundred two billion, two hundred fifty-two million, forty-three thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 113 226 452 565 599 1130 1198 2260 2396 2995 5990 11980 67687 75533 135374 151066 270748 302132 338435 377665 676870 755330 1353740 1510660 8535229 17070458 34140916 42676145 45244267 85352290 90488534 170704580 180977068 226221335 452442670 904885340 5112602171 10225204342 20450408684 25563010855 51126021710 102252043420