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252331031532 = 223431278574493
BaseRepresentation
bin1110101100000000011…
…0011111101111101100
3220010022101100112020110
43223000012133233230
513113233221002112
6311530321420020
724141666244026
oct3530006375754
9803271315213
10252331031532
119801631a798
1240aa119a610
131aa43caa6a8
14c2da23b016
15686c7ba13c
hex3ac019fbec

252331031532 has 96 divisors (see below), whose sum is σ = 608052436992. Its totient is φ = 81394177536.

The previous prime is 252331031521. The next prime is 252331031543. The reversal of 252331031532 is 235130133252.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (252331031521) and next prime (252331031543).

It is a self number, because there is not a number n which added to its sum of digits gives 252331031532.

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, 56158678 + ... + 56163170.

It is an arithmetic number, because the mean of its divisors is an integer number (6333879552).

Almost surely, 2252331031532 is an apocalyptic number.

It is an amenable number.

252331031532 is an abundant number, since it is smaller than the sum of its proper divisors (355721405460).

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

252331031532 is a wasteful number, since it uses less digits than its factorization.

252331031532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5527 (or 5525 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 30.

Adding to 252331031532 its reverse (235130133252), we get a palindrome (487461164784).

The spelling of 252331031532 in words is "two hundred fifty-two billion, three hundred thirty-one million, thirty-one thousand, five hundred thirty-two".

Divisors: 1 2 3 4 6 12 43 86 127 129 172 254 258 381 508 516 762 857 1524 1714 2571 3428 4493 5142 5461 8986 10284 10922 13479 16383 17972 21844 26958 32766 36851 53916 65532 73702 108839 110553 147404 193199 217678 221106 326517 386398 435356 442212 570611 579597 653034 772796 1141222 1159194 1306068 1711833 2282444 2318388 3423666 3850501 4680077 6847332 7701002 9360154 11551503 14040231 15402004 18720308 23103006 24536273 28080462 46206012 49072546 56160924 73608819 98145092 147217638 165571543 294435276 331143086 489013627 496714629 662286172 978027254 993429258 1467040881 1956054508 1986858516 2934081762 5868163524 21027585961 42055171922 63082757883 84110343844 126165515766 252331031532