Search a number
-
+
15031142560 = 255713420663
BaseRepresentation
bin11011111111110110…
…10000100010100000
31102210112202011020201
431333323100202200
5221240433030220
610523305314544
71041325414030
oct157773204240
942715664221
1015031142560
116413762975
122ab5a95a54
1315571310c5
14a2840d8c0
155ce916d0a
hex37fed08a0

15031142560 has 48 divisors (see below), whose sum is σ = 40584087936. Its totient is φ = 5153534208.

The previous prime is 15031142557. The next prime is 15031142563. The reversal of 15031142560 is 6524113051.

It is an interprime number because it is at equal distance from previous prime (15031142557) and next prime (15031142563).

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (15031142563) 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, 6709212 + ... + 6711451.

It is an arithmetic number, because the mean of its divisors is an integer number (845501832).

Almost surely, 215031142560 is an apocalyptic number.

15031142560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15031142560 is an abundant number, since it is smaller than the sum of its proper divisors (25552945376).

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

15031142560 is a wasteful number, since it uses less digits than its factorization.

15031142560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13420685 (or 13420677 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The spelling of 15031142560 in words is "fifteen billion, thirty-one million, one hundred forty-two thousand, five hundred sixty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 32 35 40 56 70 80 112 140 160 224 280 560 1120 13420663 26841326 53682652 67103315 93944641 107365304 134206630 187889282 214730608 268413260 375778564 429461216 469723205 536826520 751557128 939446410 1073653040 1503114256 1878892820 2147306080 3006228512 3757785640 7515571280 15031142560