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70025719 = 37251151
BaseRepresentation
bin1000010110010…
…00000111110111
311212202200020011
410023020013313
5120411310334
610540521051
71510131421
oct413100767
9155680204
1070025719
11365893a5
121b550187
131167a44a
14942b811
156233564
hex42c81f7

70025719 has 6 divisors (see below), whose sum is σ = 71970864. Its totient is φ = 68131800.

The previous prime is 70025717. The next prime is 70025741. The reversal of 70025719 is 91752007.

It is not a de Polignac number, because 70025719 - 21 = 70025717 is a prime.

It is a super-2 number, since 2×700257192 = 9807202642933922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70025713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24207 + ... + 26944.

It is an arithmetic number, because the mean of its divisors is an integer number (11995144).

Almost surely, 270025719 is an apocalyptic number.

70025719 is a deficient number, since it is larger than the sum of its proper divisors (1945145).

70025719 is an equidigital number, since it uses as much as digits as its factorization.

70025719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51225 (or 51188 counting only the distinct ones).

The product of its (nonzero) digits is 4410, while the sum is 31.

The square root of 70025719 is about 8368.1371284175. The cubic root of 70025719 is about 412.1789977703.

It can be divided in two parts, 7002 and 5719, that added together give a palindrome (12721).

The spelling of 70025719 in words is "seventy million, twenty-five thousand, seven hundred nineteen".

Divisors: 1 37 1369 51151 1892587 70025719