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3137869808640 = 210375731943
BaseRepresentation
bin101101101010010111100…
…111011000010000000000
3102002222101112122020000000
4231222113213120100000
5402402324132334030
610401303440000000
7442463224203000
oct55522747302000
912088345566000
103137869808640
11aaa843780596
12428182300000
13199b90c92c28
14abc3365a000
1556953437860
hex2da979d8400

3137869808640 has 2816 divisors, whose sum is σ = 14180305920000. Its totient is φ = 663676747776.

The previous prime is 3137869808617. The next prime is 3137869808651. The reversal of 3137869808640 is 468089687313.

3137869808640 is a `hidden beast` number, since 313 + 78 + 69 + 80 + 86 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 72973716459 + ... + 72973716501.

It is an arithmetic number, because the mean of its divisors is an integer number (5035620000).

Almost surely, 23137869808640 is an apocalyptic number.

3137869808640 is a gapful number since it is divisible by the number (30) 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 3137869808640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7090152960000).

3137869808640 is an abundant number, since it is smaller than the sum of its proper divisors (11042436111360).

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

3137869808640 is an frugal number, since it uses more digits than its factorization.

3137869808640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129 (or 79 counting only the distinct ones).

The product of its (nonzero) digits is 41803776, while the sum is 63.

The spelling of 3137869808640 in words is "three trillion, one hundred thirty-seven billion, eight hundred sixty-nine million, eight hundred eight thousand, six hundred forty".