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70000507 = 463151189
BaseRepresentation
bin1000010110000…
…01111101111011
311212201101122101
410023001331323
5120410004012
610540204231
71506665053
oct413017573
9155641571
1070000507
1136571465
121b539677
131166bb25
149422563
15622ad57
hex42c1f7b

70000507 has 4 divisors (see below), whose sum is σ = 70152160. Its totient is φ = 69848856.

The previous prime is 70000493. The next prime is 70000549. The reversal of 70000507 is 70500007.

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

It is a cyclic number.

It is not a de Polignac number, because 70000507 - 27 = 70000379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70001507) 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, 75132 + ... + 76057.

It is an arithmetic number, because the mean of its divisors is an integer number (17538040).

Almost surely, 270000507 is an apocalyptic number.

70000507 is a deficient number, since it is larger than the sum of its proper divisors (151653).

70000507 is a wasteful number, since it uses less digits than its factorization.

70000507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151652.

The product of its (nonzero) digits is 245, while the sum is 19.

The square root of 70000507 is about 8366.6305643311. The cubic root of 70000507 is about 412.1295249745.

Subtracting 70000507 from its reverse (70500007), we obtain a triangular number (499500 = T999).

It can be divided in two parts, 70000 and 507, that added together give a palindrome (70507).

The spelling of 70000507 in words is "seventy million, five hundred seven", and thus it is an aban number.

Divisors: 1 463 151189 70000507