Search a number
-
+
70897939200 = 2834521112433
BaseRepresentation
bin100001000000111011…
…0001011001100000000
320202222222222110220000
41002001312023030000
52130144333023300
652323044520000
75056626353124
oct1020166131400
9222888873800
1070897939200
1128082047090
12118a76b0000
1368bb49c01a
143607d97584
151c9e381c00
hex1081d8b300

70897939200 has 540 divisors, whose sum is σ = 285996075288. Its totient is φ = 17185996800.

The previous prime is 70897939171. The next prime is 70897939201. The reversal of 70897939200 is 293979807.

It is a tau number, because it is divible by the number of its divisors (540).

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

It is not an unprimeable number, because it can be changed into a prime (70897939201) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 5696184 + ... + 5708616.

Almost surely, 270897939200 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 70897939200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (142998037644).

70897939200 is an abundant number, since it is smaller than the sum of its proper divisors (215098136088).

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

70897939200 is a wasteful number, since it uses less digits than its factorization.

70897939200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12482 (or 12454 counting only the distinct ones).

The product of its (nonzero) digits is 1714608, while the sum is 54.

The spelling of 70897939200 in words is "seventy billion, eight hundred ninety-seven million, nine hundred thirty-nine thousand, two hundred".