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51025505516232 = 233131447165768209
BaseRepresentation
bin10111001101000010011010…
…01000010111101011001000
320200122222202012201011100020
423212201031020113223020
523142000213403004412
6300304443231340440
713514320410451602
oct1346411510275310
9220588665634306
1051025505516232
11152928826a4915
125881102681720
1322618b8b8bb50
14c8590d1c8172
155d745565118c
hex2e684d217ac8

51025505516232 has 128 divisors (see below), whose sum is σ = 137556280377600. Its totient is φ = 15679607021568.

The previous prime is 51025505516131. The next prime is 51025505516327. The reversal of 51025505516232 is 23261550552015.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 748041744 + ... + 748109952.

It is an arithmetic number, because the mean of its divisors is an integer number (1074658440450).

Almost surely, 251025505516232 is an apocalyptic number.

51025505516232 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

51025505516232 is an abundant number, since it is smaller than the sum of its proper divisors (86530774861368).

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

51025505516232 is a wasteful number, since it uses less digits than its factorization.

51025505516232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71335 (or 71331 counting only the distinct ones).

The product of its (nonzero) digits is 450000, while the sum is 42.

The spelling of 51025505516232 in words is "fifty-one trillion, twenty-five billion, five hundred five million, five hundred sixteen thousand, two hundred thirty-two".

Divisors: 1 2 3 4 6 8 12 13 24 26 39 52 78 104 156 312 1447 1657 2894 3314 4341 4971 5788 6628 8682 9942 11576 13256 17364 18811 19884 21541 34728 37622 39768 43082 56433 64623 68209 75244 86164 112866 129246 136418 150488 172328 204627 225732 258492 272836 409254 451464 516984 545672 818508 886717 1637016 1773434 2397679 2660151 3546868 4795358 5320302 7093736 7193037 9590716 10640604 14386074 19181432 21281208 28772148 31169827 57544296 62339654 93509481 98698423 113022313 124679308 187018962 197396846 226044626 249358616 296095269 339066939 374037924 394793692 452089252 592190538 678133878 748075848 789587384 904178504 1184381076 1283079499 1356267756 1469290069 2368762152 2566158998 2712535512 2938580138 3849238497 4407870207 5132317996 5877160276 7698476994 8815740414 10264635992 11754320552 15396953988 17631480828 30793907976 35262961656 163543286911 327086573822 490629860733 654173147644 981259721466 1308346295288 1962519442932 2126062729843 3925038885864 4252125459686 6378188189529 8504250919372 12756376379058 17008501838744 25512752758116 51025505516232