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70878027132 = 22351131281761
BaseRepresentation
bin100001000000010101…
…0001101110101111100
320202221121111211200000
41002000222031311330
52130124233332012
652321054034300
75056265201343
oct1020052156574
9222847454600
1070878027132
1128071886930
12118a0aa8990
1368b7319933
143605492b5a
151c9c74bddc
hex1080a8dd7c

70878027132 has 288 divisors, whose sum is σ = 210249381888. Its totient is φ = 20684160000.

The previous prime is 70878027107. The next prime is 70878027133. The reversal of 70878027132 is 23172087807.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70878027133) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 93137632 + ... + 93138392.

It is an arithmetic number, because the mean of its divisors is an integer number (730032576).

Almost surely, 270878027132 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70878027132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105124690944).

70878027132 is an abundant number, since it is smaller than the sum of its proper divisors (139371354756).

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

70878027132 is a wasteful number, since it uses less digits than its factorization.

70878027132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1103 (or 1089 counting only the distinct ones).

The product of its (nonzero) digits is 263424, while the sum is 45.

The spelling of 70878027132 in words is "seventy billion, eight hundred seventy-eight million, twenty-seven thousand, one hundred thirty-two".