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102031202240 = 2651128986137
BaseRepresentation
bin101111100000110001…
…0001001011111000000
3100202100201201002220022
41133001202021133000
53132424441432430
6114512242433012
710241266623632
oct1370142113700
9322321632808
10102031202240
113a2a8a54440
1217936062768
139810590066
144d1cb1ca52
1529c27124e5
hex17c18897c0

102031202240 has 56 divisors (see below), whose sum is σ = 265049245872. Its totient is φ = 37102254080.

The previous prime is 102031202239. The next prime is 102031202297. The reversal of 102031202240 is 42202130201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14489549 + ... + 14496588.

Almost surely, 2102031202240 is an apocalyptic number.

102031202240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102031202240 is an abundant number, since it is smaller than the sum of its proper divisors (163018043632).

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

102031202240 is a wasteful number, since it uses less digits than its factorization.

102031202240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28986165 (or 28986155 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 102031202240 its reverse (42202130201), we get a palindrome (144233332441).

The spelling of 102031202240 in words is "one hundred two billion, thirty-one million, two hundred two thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 11 16 20 22 32 40 44 55 64 80 88 110 160 176 220 320 352 440 704 880 1760 3520 28986137 57972274 115944548 144930685 231889096 289861370 318847507 463778192 579722740 637695014 927556384 1159445480 1275390028 1594237535 1855112768 2318890960 2550780056 3188475070 4637781920 5101560112 6376950140 9275563840 10203120224 12753900280 20406240448 25507800560 51015601120 102031202240