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70023146 = 2149234977
BaseRepresentation
bin1000010110001…
…11011111101010
311212202112200212
410023013133222
5120411220041
610540501122
71510121054
oct413073752
9155675625
1070023146
1136587476
121b54a7a2
131167921b
14942a8d4
1562328eb
hex42c77ea

70023146 has 8 divisors (see below), whose sum is σ = 105740100. Its totient is φ = 34776448.

The previous prime is 70023131. The next prime is 70023157. The reversal of 70023146 is 64132007.

It can be written as a sum of positive squares in 2 ways, for example, as 49547521 + 20475625 = 7039^2 + 4525^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 117191 + ... + 117786.

Almost surely, 270023146 is an apocalyptic number.

70023146 is a deficient number, since it is larger than the sum of its proper divisors (35716954).

70023146 is a wasteful number, since it uses less digits than its factorization.

70023146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235128.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 70023146 is about 8367.9833890849. The cubic root of 70023146 is about 412.1739493892.

The spelling of 70023146 in words is "seventy million, twenty-three thousand, one hundred forty-six".

Divisors: 1 2 149 298 234977 469954 35011573 70023146