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70256341 = 277253633
BaseRepresentation
bin1000011000000…
…00011011010101
311220012101120201
410030000123111
5120441200331
610545500501
71512111661
oct414003325
9156171521
1070256341
11367266a1
121b641731
131172b3cc
14948b8a1
15627ba61
hex43006d5

70256341 has 4 divisors (see below), whose sum is σ = 70510252. Its totient is φ = 70002432.

The previous prime is 70256327. The next prime is 70256363. The reversal of 70256341 is 14365207.

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 17388900 + 52867441 = 4170^2 + 7271^2 .

It is a cyclic number.

It is not a de Polignac number, because 70256341 - 25 = 70256309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70256311) 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, 126540 + ... + 127093.

It is an arithmetic number, because the mean of its divisors is an integer number (17627563).

Almost surely, 270256341 is an apocalyptic number.

It is an amenable number.

70256341 is a deficient number, since it is larger than the sum of its proper divisors (253911).

70256341 is a wasteful number, since it uses less digits than its factorization.

70256341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253910.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 70256341 is about 8381.9055709308. The cubic root of 70256341 is about 412.6309906611.

It can be divided in two parts, 7025 and 6341, that added together give a triangular number (13366 = T163).

The spelling of 70256341 in words is "seventy million, two hundred fifty-six thousand, three hundred forty-one".

Divisors: 1 277 253633 70256341