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254102050515340 = 225307311133069771
BaseRepresentation
bin111001110001101010111110…
…011101010010100110001100
31020022200220210210112100010201
4321301222332131102212030
5231301201444412442330
62300232512005343244
7104344160456104306
oct7161527635224614
91208626723470121
10254102050515340
1173a680900a8685
12245ba81a707b24
13aba294a0701b1
1446a6867a76976
151e59b9de33eca
hexe71abe75298c

254102050515340 has 48 divisors (see below), whose sum is σ = 537073858024704. Its totient is φ = 100983987057600.

The previous prime is 254102050515329. The next prime is 254102050515367. The reversal of 254102050515340 is 43515050201452.

It is a super-2 number, since 2×2541020505153402 (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 254102050515340.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64625346 + ... + 68444425.

It is an arithmetic number, because the mean of its divisors is an integer number (11189038708848).

Almost surely, 2254102050515340 is an apocalyptic number.

254102050515340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

254102050515340 is an abundant number, since it is smaller than the sum of its proper divisors (282971807509364).

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

254102050515340 is a wasteful number, since it uses less digits than its factorization.

254102050515340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133070398 (or 133070396 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 37.

The spelling of 254102050515340 in words is "two hundred fifty-four trillion, one hundred two billion, fifty million, five hundred fifteen thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 307 311 614 622 1228 1244 1535 1555 3070 3110 6140 6220 95477 190954 381908 477385 954770 1909540 133069771 266139542 532279084 665348855 1330697710 2661395420 40852419697 41384698781 81704839394 82769397562 163409678788 165538795124 204262098485 206923493905 408524196970 413846987810 817048393940 827693975620 12705102525767 25410205051534 50820410103068 63525512628835 127051025257670 254102050515340