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248490136 = 2367895209
BaseRepresentation
bin11101100111110…
…10100010011000
3122022120121101101
432303322202120
51002103141021
640354001144
76105063016
oct1663724230
9568517341
10248490136
111182a2354
126b2761b4
133c6343ab
14250058b6
1516c36a91
hexecfa898

248490136 has 32 divisors (see below), whose sum is σ = 478278000. Its totient is φ = 120992256.

The previous prime is 248490133. The next prime is 248490167. The reversal of 248490136 is 631094842.

It is a junction number, because it is equal to n+sod(n) for n = 248490095 and 248490104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (248490133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45100 + ... + 50308.

Almost surely, 2248490136 is an apocalyptic number.

It is an amenable number.

248490136 is a deficient number, since it is larger than the sum of its proper divisors (229787864).

248490136 is a wasteful number, since it uses less digits than its factorization.

248490136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5371 (or 5367 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 248490136 is about 15763.5699002478. The cubic root of 248490136 is about 628.6897569638.

The spelling of 248490136 in words is "two hundred forty-eight million, four hundred ninety thousand, one hundred thirty-six".

Divisors: 1 2 4 8 67 89 134 178 268 356 536 712 5209 5963 10418 11926 20836 23852 41672 47704 349003 463601 698006 927202 1396012 1854404 2792024 3708808 31061267 62122534 124245068 248490136