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13877480 = 2352331489
BaseRepresentation
bin110100111100…
…000011101000
3222010001022202
4310330003220
512023034410
61213235332
7225646061
oct64740350
928101282
1013877480
1179193a1
124792b48
132b4b736
141bb3568
151341ca5
hexd3c0e8

13877480 has 32 divisors (see below), whose sum is σ = 31379400. Its totient is φ = 5523456.

The previous prime is 13877459. The next prime is 13877497. The reversal of 13877480 is 8477831.

It can be written as a sum of positive squares in 4 ways, for example, as 7086244 + 6791236 = 2662^2 + 2606^2 .

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 8576 + ... + 10064.

Almost surely, 213877480 is an apocalyptic number.

13877480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13877480 is an abundant number, since it is smaller than the sum of its proper divisors (17501920).

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

13877480 is a wasteful number, since it uses less digits than its factorization.

13877480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1733 (or 1729 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 38.

The square root of 13877480 is about 3725.2489849673. The cubic root of 13877480 is about 240.3090924941.

The spelling of 13877480 in words is "thirteen million, eight hundred seventy-seven thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 233 466 932 1165 1489 1864 2330 2978 4660 5956 7445 9320 11912 14890 29780 59560 346937 693874 1387748 1734685 2775496 3469370 6938740 13877480