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70046420 = 2257347977
BaseRepresentation
bin1000010110011…
…01001011010100
311212210201121212
410023031023110
5120412441140
610541200552
71510245653
oct413151324
9155721555
1070046420
11365a2a04
121b560158
13116869b2
14943519a
156239765
hex42cd2d4

70046420 has 24 divisors (see below), whose sum is σ = 149115624. Its totient is φ = 27634176.

The previous prime is 70046419. The next prime is 70046437. The reversal of 70046420 is 2464007.

It can be written as a sum of positive squares in 4 ways, for example, as 31158724 + 38887696 = 5582^2 + 6236^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22529 + ... + 25448.

It is an arithmetic number, because the mean of its divisors is an integer number (6213151).

Almost surely, 270046420 is an apocalyptic number.

It is an amenable number.

70046420 is an abundant number, since it is smaller than the sum of its proper divisors (79069204).

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

70046420 is a wasteful number, since it uses less digits than its factorization.

70046420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48059 (or 48057 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 70046420 is about 8369.3739311851. The cubic root of 70046420 is about 412.2196098811.

The spelling of 70046420 in words is "seventy million, forty-six thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 73 146 292 365 730 1460 47977 95954 191908 239885 479770 959540 3502321 7004642 14009284 17511605 35023210 70046420