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252702490 = 25711572267
BaseRepresentation
bin11110000111111…
…10111100011010
3122121111121122111
433003332330122
51004142434430
641024142534
76155635645
oct1703767432
9577447574
10252702490
1111a70a137
1270767a4a
134047a801
14257c0a5c
15172b9c2a
hexf0fef1a

252702490 has 32 divisors (see below), whose sum is σ = 464413824. Its totient is φ = 98978880.

The previous prime is 252702431. The next prime is 252702521. The reversal of 252702490 is 94207252.

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, 110337 + ... + 112603.

It is an arithmetic number, because the mean of its divisors is an integer number (14512932).

Almost surely, 2252702490 is an apocalyptic number.

252702490 is a deficient number, since it is larger than the sum of its proper divisors (211711334).

252702490 is a wasteful number, since it uses less digits than its factorization.

252702490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2502.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 252702490 is about 15896.6188228818. The cubic root of 252702490 is about 632.2223437224. Note that the first 3 decimals are identical.

The spelling of 252702490 in words is "two hundred fifty-two million, seven hundred two thousand, four hundred ninety".

Divisors: 1 2 5 10 71 142 157 314 355 710 785 1570 2267 4534 11147 11335 22294 22670 55735 111470 160957 321914 355919 711838 804785 1609570 1779595 3559190 25270249 50540498 126351245 252702490