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70025369 = 208933521
BaseRepresentation
bin1000010110010…
…00000010011001
311212202122202012
410023020002121
5120411302434
610540515305
71510130411
oct413100231
9155678665
1070025369
1136589107
121b54bb35
131167a23b
14942b641
1562333ce
hex42c8099

70025369 has 4 divisors (see below), whose sum is σ = 70060980. Its totient is φ = 69989760.

The previous prime is 70025353. The next prime is 70025399. The reversal of 70025369 is 96352007.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 42094144 + 27931225 = 6488^2 + 5285^2 .

It is a cyclic number.

It is not a de Polignac number, because 70025369 - 24 = 70025353 is a prime.

It is a super-2 number, since 2×700253692 = 9807104607172322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70025339) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14672 + ... + 18849.

It is an arithmetic number, because the mean of its divisors is an integer number (17515245).

Almost surely, 270025369 is an apocalyptic number.

It is an amenable number.

70025369 is a deficient number, since it is larger than the sum of its proper divisors (35611).

70025369 is a wasteful number, since it uses less digits than its factorization.

70025369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35610.

The product of its (nonzero) digits is 11340, while the sum is 32.

The square root of 70025369 is about 8368.1162157322. The cubic root of 70025369 is about 412.1783110565.

The spelling of 70025369 in words is "seventy million, twenty-five thousand, three hundred sixty-nine".

Divisors: 1 2089 33521 70025369