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13660993710 = 233574131621
BaseRepresentation
bin11001011100100001…
…00011100010101110
31022021001120101101000
430232100203202232
5210434203244320
610135322301130
7662350350000
oct145620434256
938231511330
1013660993710
115880302851
1227930577a6
131399304940
1493846c370
1554e4bbc90
hex32e4238ae

13660993710 has 320 divisors, whose sum is σ = 45795677760. Its totient is φ = 2880541440.

The previous prime is 13660993699. The next prime is 13660993733. The reversal of 13660993710 is 1739906631.

13660993710 is a `hidden beast` number, since 1 + 3 + 6 + 609 + 9 + 37 + 1 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 8426700 + ... + 8428320.

It is an arithmetic number, because the mean of its divisors is an integer number (143111493).

Almost surely, 213660993710 is an apocalyptic number.

13660993710 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 13660993710, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22897838880).

13660993710 is an abundant number, since it is smaller than the sum of its proper divisors (32134684050).

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

13660993710 is a wasteful number, since it uses less digits than its factorization.

13660993710 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1678 (or 1651 counting only the distinct ones).

The product of its (nonzero) digits is 183708, while the sum is 45.

The spelling of 13660993710 in words is "thirteen billion, six hundred sixty million, nine hundred ninety-three thousand, seven hundred ten".