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252151251340 = 225531442316493
BaseRepresentation
bin1110101011010101100…
…0101100000110001100
3220002211212001202011211
43222311120230012030
513112401210020330
6311500420224204
724134354162362
oct3526530540614
9802755052154
10252151251340
1197a3389821a
1240a50b3b064
131aa15982891
14c2c03dd632
15685bb06d2a
hex3ab562c18c

252151251340 has 48 divisors (see below), whose sum is σ = 539578646208. Its totient is φ = 98944611584.

The previous prime is 252151251337. The next prime is 252151251349. The reversal of 252151251340 is 43152151252.

It is not an unprimeable number, because it can be changed into a prime (252151251349) 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, 15280134 + ... + 15296626.

It is an arithmetic number, because the mean of its divisors is an integer number (11241221796).

Almost surely, 2252151251340 is an apocalyptic number.

252151251340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252151251340 is an abundant number, since it is smaller than the sum of its proper divisors (287427394868).

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

252151251340 is a wasteful number, since it uses less digits than its factorization.

252151251340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30978 (or 30976 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 31.

The spelling of 252151251340 in words is "two hundred fifty-two billion, one hundred fifty-one million, two hundred fifty-one thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 53 106 212 265 530 1060 14423 16493 28846 32986 57692 65972 72115 82465 144230 164930 288460 329860 764419 874129 1528838 1748258 3057676 3496516 3822095 4370645 7644190 8741290 15288380 17482580 237878539 475757078 951514156 1189392695 2378785390 4757570780 12607562567 25215125134 50430250268 63037812835 126075625670 252151251340