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253398498 = 231723108013
BaseRepresentation
bin11110001101010…
…00110111100010
3122122210222101120
433012220313202
51004332222443
641051113110
76164565063
oct1706506742
9578728346
10253398498
11120045051
1270a42796
1340662552
142592256a
15173a6083
hexf1a8de2

253398498 has 32 divisors (see below), whose sum is σ = 559944576. Its totient is φ = 76040448.

The previous prime is 253398493. The next prime is 253398499. The reversal of 253398498 is 894893352.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a self number, because there is not a number n which added to its sum of digits gives 253398498.

It is not an unprimeable number, because it can be changed into a prime (253398493) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51661 + ... + 56352.

It is an arithmetic number, because the mean of its divisors is an integer number (17498268).

Almost surely, 2253398498 is an apocalyptic number.

253398498 is an abundant number, since it is smaller than the sum of its proper divisors (306546078).

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

253398498 is a wasteful number, since it uses less digits than its factorization.

253398498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108058.

The product of its digits is 1866240, while the sum is 51.

The square root of 253398498 is about 15918.4954691076. The cubic root of 253398498 is about 632.8022462512.

The spelling of 253398498 in words is "two hundred fifty-three million, three hundred ninety-eight thousand, four hundred ninety-eight".

Divisors: 1 2 3 6 17 23 34 46 51 69 102 138 391 782 1173 2346 108013 216026 324039 648078 1836221 2484299 3672442 4968598 5508663 7452897 11017326 14905794 42233083 84466166 126699249 253398498