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42561600250 = 2531397113487
BaseRepresentation
bin100111101000110111…
…100111101011111010
311001212012011022102211
4213220313213223322
51144131232202000
631315202445334
73034500430051
oct475067475372
9131765138384
1042561600250
1117060a06244
1282b996384a
13402399c160
1420ba895398
15119182e7ba
hex9e8de7afa

42561600250 has 64 divisors (see below), whose sum is σ = 85898921472. Its totient is φ = 15697704000.

The previous prime is 42561600241. The next prime is 42561600253. The reversal of 42561600250 is 5200616524.

It is a super-2 number, since 2×425616002502 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42561600253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3149007 + ... + 3162493.

It is an arithmetic number, because the mean of its divisors is an integer number (1342170648).

Almost surely, 242561600250 is an apocalyptic number.

42561600250 is an abundant number, since it is smaller than the sum of its proper divisors (43337321222).

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

42561600250 is a wasteful number, since it uses less digits than its factorization.

42561600250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14488 (or 14478 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 31.

The spelling of 42561600250 in words is "forty-two billion, five hundred sixty-one million, six hundred thousand, two hundred fifty".

Divisors: 1 2 5 10 13 25 26 50 65 125 130 250 325 650 971 1625 1942 3250 4855 9710 12623 13487 24275 25246 26974 48550 63115 67435 121375 126230 134870 175331 242750 315575 337175 350662 631150 674350 876655 1577875 1685875 1753310 3155750 3371750 4383275 8766550 13095877 21916375 26191754 43832750 65479385 130958770 170246401 327396925 340492802 654793850 851232005 1636984625 1702464010 3273969250 4256160025 8512320050 21280800125 42561600250