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8313426401280 = 2113571113409661
BaseRepresentation
bin111100011111001111011…
…0100111101100000000000
31002102202101222110021122220
41320332132310331200000
52042201344124320110
625403045123331040
71515424312320630
oct170763664754000
932382358407586
108313426401280
112715782522540
12b23245820a80
13483c5024acc0
1420a52ca246c0
15e63b8202370
hex78f9ed3d800

8313426401280 has 1536 divisors, whose sum is σ = 35851411814400. Its totient is φ = 1588278067200.

The previous prime is 8313426401261. The next prime is 8313426401299. The reversal of 8313426401280 is 821046243138.

It is an interprime number because it is at equal distance from previous prime (8313426401261) and next prime (8313426401299).

It is a tau number, because it is divible by the number of its divisors (1536).

It is a super-2 number, since 2×83134264012802 (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 12577044150 + ... + 12577044810.

It is an arithmetic number, because the mean of its divisors is an integer number (23340762900).

Almost surely, 28313426401280 is an apocalyptic number.

8313426401280 is a gapful number since it is divisible by the number (80) 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 8313426401280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17925705907200).

8313426401280 is an abundant number, since it is smaller than the sum of its proper divisors (27537985413120).

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

8313426401280 is a wasteful number, since it uses less digits than its factorization.

8313426401280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1131 (or 1111 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 42.

The spelling of 8313426401280 in words is "eight trillion, three hundred thirteen billion, four hundred twenty-six million, four hundred one thousand, two hundred eighty".