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12542010 = 2351332159
BaseRepresentation
bin101111110110…
…000000111010
3212121012101220
4233312000322
511202321020
61124452510
7211414425
oct57660072
925535356
1012542010
117096aa8
12424a136
1327a1910
1419469bc
15117b240
hexbf603a

12542010 has 32 divisors (see below), whose sum is σ = 32417280. Its totient is φ = 3087168.

The previous prime is 12541999. The next prime is 12542017. The reversal of 12542010 is 1024521.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (12542017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15690 + ... + 16469.

It is an arithmetic number, because the mean of its divisors is an integer number (1013040).

Almost surely, 212542010 is an apocalyptic number.

12542010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12542010 is an abundant number, since it is smaller than the sum of its proper divisors (19875270).

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

12542010 is a wasteful number, since it uses less digits than its factorization.

12542010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32182.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 12542010 is about 3541.4700337572. The cubic root of 12542010 is about 232.3391418267.

Adding to 12542010 its reverse (1024521), we get a palindrome (13566531).

The spelling of 12542010 in words is "twelve million, five hundred forty-two thousand, ten".

Divisors: 1 2 3 5 6 10 13 15 26 30 39 65 78 130 195 390 32159 64318 96477 160795 192954 321590 418067 482385 836134 964770 1254201 2090335 2508402 4180670 6271005 12542010