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30101970791970 = 2335771131397
BaseRepresentation
bin1101101100000101010010…
…10001101010111000100010
310221120201110002201201002000
412312002221101222320202
512421142314010320340
6144004353211104430
76224536620000000
oct666025121527042
9127521402651060
1030101970791970
1196561a0834350
123461b69142116
1313a47b033a68c
14760d2c061a70
1537304c056d30
hex1b60a946ae22

30101970791970 has 1024 divisors, whose sum is σ = 105725509632000. Its totient is φ = 6037934918400.

The previous prime is 30101970791951. The next prime is 30101970791993. The reversal of 30101970791970 is 7919707910103.

30101970791970 is a `hidden beast` number, since 301 + 0 + 19 + 70 + 79 + 197 + 0 = 666.

It is a super-2 number, since 2×301019707919702 (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 511 ways as a sum of consecutive naturals, for example, 75823603812 + ... + 75823604208.

It is an arithmetic number, because the mean of its divisors is an integer number (103247568000).

Almost surely, 230101970791970 is an apocalyptic number.

30101970791970 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 30101970791970, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52862754816000).

30101970791970 is an abundant number, since it is smaller than the sum of its proper divisors (75623538840030).

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

30101970791970 is an frugal number, since it uses more digits than its factorization.

30101970791970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 504 (or 456 counting only the distinct ones).

The product of its (nonzero) digits is 750141, while the sum is 54.

The spelling of 30101970791970 in words is "thirty trillion, one hundred one billion, nine hundred seventy million, seven hundred ninety-one thousand, nine hundred seventy".