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15070385 = 511274007
BaseRepresentation
bin111001011111…
…010010110001
31001100122200102
4321133102301
512324223020
61255002145
7242044661
oct71372261
931318612
1015070385
118563670
125069355
1331786b5
1420041a1
1514ca475
hexe5f4b1

15070385 has 8 divisors (see below), whose sum is σ = 19728576. Its totient is φ = 10960240.

The previous prime is 15070379. The next prime is 15070387. The reversal of 15070385 is 58307051.

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

It is not a de Polignac number, because 15070385 - 24 = 15070369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15070387) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136949 + ... + 137058.

It is an arithmetic number, because the mean of its divisors is an integer number (2466072).

Almost surely, 215070385 is an apocalyptic number.

It is an amenable number.

15070385 is a deficient number, since it is larger than the sum of its proper divisors (4658191).

15070385 is a wasteful number, since it uses less digits than its factorization.

15070385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274023.

The product of its (nonzero) digits is 4200, while the sum is 29.

The square root of 15070385 is about 3882.0593761559. The cubic root of 15070385 is about 247.0063486269.

The spelling of 15070385 in words is "fifteen million, seventy thousand, three hundred eighty-five".

Divisors: 1 5 11 55 274007 1370035 3014077 15070385