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253474430 = 25112271773
BaseRepresentation
bin11110001101110…
…11011001111110
3122122221211112212
433012323121332
51004342140210
641052500422
76165332336
oct1706733176
9578854485
10253474430
11120097100
1270a7a712
134068ac91
14259420c6
15173bd805
hexf1bb67e

253474430 has 48 divisors (see below), whose sum is σ = 504004032. Its totient is φ = 91713600.

The previous prime is 253474399. The next prime is 253474499. The reversal of 253474430 is 34474352.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 327524 + ... + 328296.

It is an arithmetic number, because the mean of its divisors is an integer number (10500084).

Almost surely, 2253474430 is an apocalyptic number.

253474430 is a deficient number, since it is larger than the sum of its proper divisors (250529602).

253474430 is a wasteful number, since it uses less digits than its factorization.

253474430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1073 (or 1062 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 32.

The square root of 253474430 is about 15920.8803148570. The cubic root of 253474430 is about 632.8654472855.

The spelling of 253474430 in words is "two hundred fifty-three million, four hundred seventy-four thousand, four hundred thirty".

Divisors: 1 2 5 10 11 22 55 110 121 242 271 542 605 773 1210 1355 1546 2710 2981 3865 5962 7730 8503 14905 17006 29810 32791 42515 65582 85030 93533 163955 187066 209483 327910 418966 467665 935330 1047415 2094830 2304313 4608626 11521565 23043130 25347443 50694886 126737215 253474430