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12425255220 = 2235755753113
BaseRepresentation
bin10111001001001101…
…00101100100110100
31012001221022100211210
423210212211210310
5200421331131340
65412540201420
7616623632610
oct134446454464
935057270753
1012425255220
1152a6807174
1224a9239270
1312302a9531
1485c2b8340
154cac72180
hex2e49a5934

12425255220 has 96 divisors (see below), whose sum is σ = 39832950528. Its totient is φ = 2834906112.

The previous prime is 12425255191. The next prime is 12425255237. The reversal of 12425255220 is 2255252421.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

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, 207384 + ... + 260496.

It is an arithmetic number, because the mean of its divisors is an integer number (414926568).

Almost surely, 212425255220 is an apocalyptic number.

12425255220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12425255220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19916475264).

12425255220 is an abundant number, since it is smaller than the sum of its proper divisors (27407695308).

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

12425255220 is a wasteful number, since it uses less digits than its factorization.

12425255220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53689 (or 53687 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 30.

The spelling of 12425255220 in words is "twelve billion, four hundred twenty-five million, two hundred fifty-five thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 60 70 84 105 140 210 420 557 1114 1671 2228 2785 3342 3899 5570 6684 7798 8355 11140 11697 15596 16710 19495 23394 33420 38990 46788 53113 58485 77980 106226 116970 159339 212452 233940 265565 318678 371791 531130 637356 743582 796695 1062260 1115373 1487164 1593390 1858955 2230746 3186780 3717910 4461492 5576865 7435820 11153730 22307460 29583941 59167882 88751823 118335764 147919705 177503646 207087587 295839410 355007292 414175174 443759115 591678820 621262761 828350348 887518230 1035437935 1242525522 1775036460 2070875870 2485051044 3106313805 4141751740 6212627610 12425255220