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19972162502232 = 2333785726244077
BaseRepresentation
bin1001000101010001000011…
…01001101011111001011000
32121201022122100022002122220
410202220201221223321120
510104210442100032412
6110251030151544040
74130640543135153
oct442504151537130
977638570262586
1019972162502232
116400168071a36
1222a68a498b020
13b1b49cc51675
144d092d0ccc9a
152497c601d68c
hex122a21a6be58

19972162502232 has 64 divisors (see below), whose sum is σ = 51339715146720. Its totient is φ = 6469899568128.

The previous prime is 19972162502203. The next prime is 19972162502233. The reversal of 19972162502232 is 23220526127991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19972162502233) 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, 12361023 + ... + 13883054.

Almost surely, 219972162502232 is an apocalyptic number.

19972162502232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19972162502232 is an abundant number, since it is smaller than the sum of its proper divisors (31367552644488).

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

19972162502232 is a wasteful number, since it uses less digits than its factorization.

19972162502232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26244980 (or 26244976 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 51.

The spelling of 19972162502232 in words is "nineteen trillion, nine hundred seventy-two billion, one hundred sixty-two million, five hundred two thousand, two hundred thirty-two".

Divisors: 1 2 3 4 6 8 12 24 37 74 111 148 222 296 444 857 888 1714 2571 3428 5142 6856 10284 20568 31709 63418 95127 126836 190254 253672 380508 761016 26244077 52488154 78732231 104976308 157464462 209952616 314928924 629857848 971030849 1942061698 2913092547 3884123396 5826185094 7768246792 11652370188 22491173989 23304740376 44982347978 67473521967 89964695956 134947043934 179929391912 269894087868 539788175736 832173437593 1664346875186 2496520312779 3328693750372 4993040625558 6657387500744 9986081251116 19972162502232