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120913193973880 = 2357111674215091097
BaseRepresentation
bin11011011111100001001011…
…111110011011100001111000
3120212010012002101100102210001
4123133201023332123201320
5111322020210124131010
61105054430545002344
734316455443660640
oct3337411376334170
9525105071312701
10120913193973880
1135587aa7885950
12116899540233b4
1352610b0511bc9
1421c0330875520
15dea36a14cc3a
hex6df84bf9b878

120913193973880 has 512 divisors, whose sum is σ = 343010955571200. Its totient is φ = 37265150361600.

The previous prime is 120913193973863. The next prime is 120913193973937. The reversal of 120913193973880 is 88379391319021.

It is a super-2 number, since 2×1209131939738802 (a number of 29 digits) contains 22 as substring.

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, 110221689492 + ... + 110221690588.

It is an arithmetic number, because the mean of its divisors is an integer number (669943272600).

Almost surely, 2120913193973880 is an apocalyptic number.

120913193973880 is a gapful number since it is divisible by the number (10) 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 120913193973880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (171505477785600).

120913193973880 is an abundant number, since it is smaller than the sum of its proper divisors (222097761597320).

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

120913193973880 is a wasteful number, since it uses less digits than its factorization.

120913193973880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2223 (or 2219 counting only the distinct ones).

The product of its (nonzero) digits is 17635968, while the sum is 64.

The spelling of 120913193973880 in words is "one hundred twenty trillion, nine hundred thirteen billion, one hundred ninety-three million, nine hundred seventy-three thousand, eight hundred eighty".