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70025436 = 223213149627
BaseRepresentation
bin1000010110010…
…00000011011100
311212202122211200
410023020003130
5120411303221
610540515500
71510130535
oct413100334
9155678750
1070025436
1136589168
121b54bb90
131167a290
14942b68c
156233426
hex42c80dc

70025436 has 36 divisors (see below), whose sum is σ = 190626072. Its totient is φ = 21546144.

The previous prime is 70025429. The next prime is 70025437. The reversal of 70025436 is 63452007.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70025437) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 74346 + ... + 75281.

Almost surely, 270025436 is an apocalyptic number.

It is an amenable number.

70025436 is an abundant number, since it is smaller than the sum of its proper divisors (120600636).

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

70025436 is a wasteful number, since it uses less digits than its factorization.

70025436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149650 (or 149645 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 70025436 is about 8368.1202190217. The cubic root of 70025436 is about 412.1784425133.

The spelling of 70025436 in words is "seventy million, twenty-five thousand, four hundred thirty-six".

Divisors: 1 2 3 4 6 9 12 13 18 26 36 39 52 78 117 156 234 468 149627 299254 448881 598508 897762 1346643 1795524 1945151 2693286 3890302 5386572 5835453 7780604 11670906 17506359 23341812 35012718 70025436