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25072120200 = 23352172458051
BaseRepresentation
bin10111010110011010…
…100011000110001000
32101201022121200010110
4113112122203012020
5402321430321300
615303514314320
71545211335231
oct272632430610
971638550113
1025072120200
11a6a6615aa6
124a387289a0
1324974680aa
1412dbb9c088
159bb1bb550
hex5d66a3188

25072120200 has 96 divisors (see below), whose sum is σ = 82295580960. Its totient is φ = 6292608000.

The previous prime is 25072120193. The next prime is 25072120219. The reversal of 25072120200 is 202127052.

It is a happy number.

It is a super-2 number, since 2×250721202002 (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1218826 + ... + 1239225.

It is an arithmetic number, because the mean of its divisors is an integer number (857245635).

Almost surely, 225072120200 is an apocalyptic number.

25072120200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25072120200 is an abundant number, since it is smaller than the sum of its proper divisors (57223460760).

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

25072120200 is a wasteful number, since it uses less digits than its factorization.

25072120200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2458087 (or 2458078 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 21.

Adding to 25072120200 its reverse (202127052), we get a palindrome (25274247252).

The spelling of 25072120200 in words is "twenty-five billion, seventy-two million, one hundred twenty thousand, two hundred".

Divisors: 1 2 3 4 5 6 8 10 12 15 17 20 24 25 30 34 40 50 51 60 68 75 85 100 102 120 136 150 170 200 204 255 300 340 408 425 510 600 680 850 1020 1275 1700 2040 2550 3400 5100 10200 2458051 4916102 7374153 9832204 12290255 14748306 19664408 24580510 29496612 36870765 41786867 49161020 58993224 61451275 73741530 83573734 98322040 122902550 125360601 147483060 167147468 184353825 208934335 245805100 250721202 294966120 334294936 368707650 417868670 491610200 501442404 626803005 737415300 835737340 1002884808 1044671675 1253606010 1474830600 1671474680 2089343350 2507212020 3134015025 4178686700 5014424040 6268030050 8357373400 12536060100 25072120200