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70988919092 = 227133161151683
BaseRepresentation
bin100001000011101000…
…1001111000100110100
320210020100011201211122
41002013101033010310
52130341130402332
652340054523112
75062112566460
oct1020721170464
9223210151748
1070988919092
1128119437683
1211912066498
1369042a4c90
1436160bb4a0
151ca7353c12
hex108744f134

70988919092 has 192 divisors, whose sum is σ = 161717649408. Its totient is φ = 26516160000.

The previous prime is 70988919077. The next prime is 70988919103. The reversal of 70988919092 is 29091988907.

It is a Harshad number since it is a multiple of its sum of digits (62).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 103936583 + ... + 103937265.

It is an arithmetic number, because the mean of its divisors is an integer number (842279424).

Almost surely, 270988919092 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 70988919092, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80858824704).

70988919092 is an abundant number, since it is smaller than the sum of its proper divisors (90728730316).

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

70988919092 is a wasteful number, since it uses less digits than its factorization.

70988919092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 950 (or 948 counting only the distinct ones).

The product of its (nonzero) digits is 5878656, while the sum is 62.

The spelling of 70988919092 in words is "seventy billion, nine hundred eighty-eight million, nine hundred nineteen thousand, ninety-two".