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13445952 = 263135387
BaseRepresentation
bin110011010010…
…101101000000
3221022010101020
4303102231000
511420232302
61200105440
7222201012
oct63225500
927263336
1013445952
117654163
124605280
132a2a1b0
141b001b2
1512a8ebc
hexcd2b40

13445952 has 56 divisors (see below), whose sum is σ = 38319456. Its totient is φ = 4136448.

The previous prime is 13445933. The next prime is 13445959. The reversal of 13445952 is 25954431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13445959) 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, 198 + ... + 5189.

It is an arithmetic number, because the mean of its divisors is an integer number (684276).

Almost surely, 213445952 is an apocalyptic number.

13445952 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13445952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19159728).

13445952 is an abundant number, since it is smaller than the sum of its proper divisors (24873504).

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

13445952 is a wasteful number, since it uses less digits than its factorization.

13445952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5415 (or 5405 counting only the distinct ones).

The product of its digits is 21600, while the sum is 33.

The square root of 13445952 is about 3666.8722366616. The cubic root of 13445952 is about 237.7919703747.

The spelling of 13445952 in words is "thirteen million, four hundred forty-five thousand, nine hundred fifty-two".

Divisors: 1 2 3 4 6 8 12 13 16 24 26 32 39 48 52 64 78 96 104 156 192 208 312 416 624 832 1248 2496 5387 10774 16161 21548 32322 43096 64644 70031 86192 129288 140062 172384 210093 258576 280124 344768 420186 517152 560248 840372 1034304 1120496 1680744 2240992 3361488 4481984 6722976 13445952