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70250870 = 257025087
BaseRepresentation
bin1000010111111…
…11000101110110
311220012010002002
410023333011312
5120441011440
610545415302
71512060014
oct413770566
9156163062
1070250870
1136722578
121b63a532
1311728a81
1494898b4
15627a115
hex42ff176

70250870 has 8 divisors (see below), whose sum is σ = 126451584. Its totient is φ = 28100344.

The previous prime is 70250837. The next prime is 70250897. The reversal of 70250870 is 7805207.

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

It is a Curzon number.

It is a congruent number.

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, 3512534 + ... + 3512553.

It is an arithmetic number, because the mean of its divisors is an integer number (15806448).

Almost surely, 270250870 is an apocalyptic number.

70250870 is a deficient number, since it is larger than the sum of its proper divisors (56200714).

70250870 is a wasteful number, since it uses less digits than its factorization.

70250870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7025094.

The product of its (nonzero) digits is 3920, while the sum is 29.

The square root of 70250870 is about 8381.5792068082. The cubic root of 70250870 is about 412.6202795864.

The spelling of 70250870 in words is "seventy million, two hundred fifty thousand, eight hundred seventy".

Divisors: 1 2 5 10 7025087 14050174 35125435 70250870