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15070340 = 22531109223
BaseRepresentation
bin111001011111…
…010010000100
31001100122121202
4321133102010
512324222330
61255002032
7242044565
oct71372204
931318552
1015070340
11856362a
125069318
13317867c
14200416c
1514ca445
hexe5f484

15070340 has 48 divisors (see below), whose sum is σ = 33116160. Its totient is φ = 5754240.

The previous prime is 15070337. The next prime is 15070351. The reversal of 15070340 is 4307051.

It is a happy number.

15070340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67469 + ... + 67691.

It is an arithmetic number, because the mean of its divisors is an integer number (689920).

Almost surely, 215070340 is an apocalyptic number.

15070340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15070340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16558080).

15070340 is an abundant number, since it is smaller than the sum of its proper divisors (18045820).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15070340 is a wasteful number, since it uses less digits than its factorization.

15070340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372 (or 370 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 15070340 is about 3882.0535802588. The cubic root of 15070340 is about 247.0061027739.

Adding to 15070340 its reverse (4307051), we get a palindrome (19377391).

The spelling of 15070340 in words is "fifteen million, seventy thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 31 62 109 124 155 218 223 310 436 446 545 620 892 1090 1115 2180 2230 3379 4460 6758 6913 13516 13826 16895 24307 27652 33790 34565 48614 67580 69130 97228 121535 138260 243070 486140 753517 1507034 3014068 3767585 7535170 15070340