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122930130816 = 273537223479
BaseRepresentation
bin111001001111100110…
…1001110111110000000
3102202022012201200100000
41302133031032332000
54003230103141231
6132250123200000
711611215604563
oct1623715167600
9382265650300
10122930130816
1148152943839
121b9a9076000
13b79127779c
145d425624da
1532e73476e6
hex1c9f34ef80

122930130816 has 384 divisors, whose sum is σ = 379240243200. Its totient is φ = 39607584768.

The previous prime is 122930130797. The next prime is 122930130913. The reversal of 122930130816 is 618031039221.

122930130816 is a `hidden beast` number, since 12 + 29 + 301 + 308 + 16 = 666.

It is a tau number, because it is divible by the number of its divisors (384).

It is a super-2 number, since 2×1229301308162 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 256638865 + ... + 256639343.

It is an arithmetic number, because the mean of its divisors is an integer number (987604800).

Almost surely, 2122930130816 is an apocalyptic number.

122930130816 is a gapful number since it is divisible by the number (16) 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 122930130816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (189620121600).

122930130816 is an abundant number, since it is smaller than the sum of its proper divisors (256310112384).

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

122930130816 is an equidigital number, since it uses as much as digits as its factorization.

122930130816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 768 (or 744 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The spelling of 122930130816 in words is "one hundred twenty-two billion, nine hundred thirty million, one hundred thirty thousand, eight hundred sixteen".