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13544940 = 2235225749
BaseRepresentation
bin110011101010…
…110111101100
3221111011011110
4303222313230
511431414230
61202152020
7223062423
oct63526754
927434143
1013544940
117711572
124652610
132a63276
141b282ba
1512c84b0
hexceadec

13544940 has 24 divisors (see below), whose sum is σ = 37926000. Its totient is φ = 3611968.

The previous prime is 13544939. The next prime is 13544959. The reversal of 13544940 is 4944531.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 13544898 and 13544907.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112815 + ... + 112934.

It is an arithmetic number, because the mean of its divisors is an integer number (1580250).

Almost surely, 213544940 is an apocalyptic number.

13544940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13544940 is an abundant number, since it is smaller than the sum of its proper divisors (24381060).

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

13544940 is a wasteful number, since it uses less digits than its factorization.

13544940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225761 (or 225759 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 13544940 is about 3680.3450925151. The cubic root of 13544940 is about 238.3740792427.

The spelling of 13544940 in words is "thirteen million, five hundred forty-four thousand, nine hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 225749 451498 677247 902996 1128745 1354494 2257490 2708988 3386235 4514980 6772470 13544940