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253474474 = 211127257353
BaseRepresentation
bin11110001101110…
…11011010101010
3122122221211121111
433012323122222
51004342140344
641052500534
76165332431
oct1706733252
9578854544
10253474474
11120097140
1270a7a74a
134068acc6
1425942118
15173bd834
hexf1bb6aa

253474474 has 32 divisors (see below), whose sum is σ = 420857856. Its totient is φ = 113541120.

The previous prime is 253474399. The next prime is 253474499. The reversal of 253474474 is 474474352.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 717882 + ... + 718234.

It is an arithmetic number, because the mean of its divisors is an integer number (13151808).

Almost surely, 2253474474 is an apocalyptic number.

253474474 is a deficient number, since it is larger than the sum of its proper divisors (167383382).

253474474 is a wasteful number, since it uses less digits than its factorization.

253474474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 750.

The product of its digits is 376320, while the sum is 40.

The square root of 253474474 is about 15920.8816966900. The cubic root of 253474474 is about 632.8654839047.

The spelling of 253474474 in words is "two hundred fifty-three million, four hundred seventy-four thousand, four hundred seventy-four".

Divisors: 1 2 11 22 127 254 257 353 514 706 1397 2794 2827 3883 5654 7766 32639 44831 65278 89662 90721 181442 359029 493141 718058 986282 997931 1995862 11521567 23043134 126737237 253474474