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20212513332 = 22311409374389
BaseRepresentation
bin10010110100110000…
…100111101000110100
31221011122102001201220
4102310300213220310
5312343400411312
613141400150340
71313612346204
oct226460475064
957148361656
1020212513332
118632489480
123b011683b0
131ba172377b
14d9a604404
157d4747c8c
hex4b4c27a34

20212513332 has 48 divisors (see below), whose sum is σ = 51575966400. Its totient is φ = 6110012160.

The previous prime is 20212513327. The next prime is 20212513337. The reversal of 20212513332 is 23331521202.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20212513327) and next prime (20212513337).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20212513337) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133207 + ... + 241182.

It is an arithmetic number, because the mean of its divisors is an integer number (1074499300).

Almost surely, 220212513332 is an apocalyptic number.

20212513332 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20212513332 is an abundant number, since it is smaller than the sum of its proper divisors (31363453068).

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

20212513332 is a wasteful number, since it uses less digits than its factorization.

20212513332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374816 (or 374814 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The spelling of 20212513332 in words is "twenty billion, two hundred twelve million, five hundred thirteen thousand, three hundred thirty-two".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 409 818 1227 1636 2454 4499 4908 8998 13497 17996 26994 53988 374389 748778 1123167 1497556 2246334 4118279 4492668 8236558 12354837 16473116 24709674 49419348 153125101 306250202 459375303 612500404 918750606 1684376111 1837501212 3368752222 5053128333 6737504444 10106256666 20212513332