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13442638370 = 257220787013
BaseRepresentation
bin11001000010011111…
…00110001000100010
31021200211200210011012
430201033212020202
5210012303411440
610101522220522
7654056353340
oct144117461042
937624623135
1013442638370
115779023197
122731ab4742
131362cc19b5
1491746c990
1553a238e65
hex3213e6222

13442638370 has 32 divisors (see below), whose sum is σ = 27666275328. Its totient is φ = 4606763328.

The previous prime is 13442638367. The next prime is 13442638399. The reversal of 13442638370 is 7383624431.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110984 + ... + 197996.

It is an arithmetic number, because the mean of its divisors is an integer number (864571104).

Almost surely, 213442638370 is an apocalyptic number.

13442638370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13442638370 is an abundant number, since it is smaller than the sum of its proper divisors (14223636958).

13442638370 is a wasteful number, since it uses less digits than its factorization.

13442638370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89234.

The product of its (nonzero) digits is 290304, while the sum is 41.

The spelling of 13442638370 in words is "thirteen billion, four hundred forty-two million, six hundred thirty-eight thousand, three hundred seventy".

Divisors: 1 2 5 7 10 14 35 70 2207 4414 11035 15449 22070 30898 77245 87013 154490 174026 435065 609091 870130 1218182 3045455 6090910 192037691 384075382 960188455 1344263837 1920376910 2688527674 6721319185 13442638370