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269925640 = 2356748141
BaseRepresentation
bin10000000101101…
…011110100001000
3200210220122100221
4100011223310020
51023100110030
642441235424
76455221135
oct2005536410
9623818327
10269925640
11129403146
1276492b74
1343bcb01a
1427bc558c
1518a6ce7a
hex1016bd08

269925640 has 16 divisors (see below), whose sum is σ = 607332780. Its totient is φ = 107970240.

The previous prime is 269925581. The next prime is 269925703. The reversal of 269925640 is 46529962.

It can be written as a sum of positive squares in 2 ways, for example, as 261080964 + 8844676 = 16158^2 + 2974^2 .

It is a super-2 number, since 2×2699256402 = 145719702258819200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3374031 + ... + 3374110.

Almost surely, 2269925640 is an apocalyptic number.

269925640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

269925640 is an abundant number, since it is smaller than the sum of its proper divisors (337407140).

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

269925640 is a wasteful number, since it uses less digits than its factorization.

269925640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6748152 (or 6748148 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 43.

The square root of 269925640 is about 16429.4138665991. The cubic root of 269925640 is about 646.2710668344.

The spelling of 269925640 in words is "two hundred sixty-nine million, nine hundred twenty-five thousand, six hundred forty".

Divisors: 1 2 4 5 8 10 20 40 6748141 13496282 26992564 33740705 53985128 67481410 134962820 269925640