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15140024 = 231892503
BaseRepresentation
bin111001110000…
…010010111000
31001111012012122
4321300102320
512333440044
61300300412
7242455004
oct71602270
931435178
1015140024
118600a19
1250a1708
1331a12c3
142021704
1514e0dee
hexe704b8

15140024 has 8 divisors (see below), whose sum is σ = 28387560. Its totient is φ = 7570008.

The previous prime is 15140023. The next prime is 15140077. The reversal of 15140024 is 42004151.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 15139984 and 15140011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15140023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 946244 + ... + 946259.

It is an arithmetic number, because the mean of its divisors is an integer number (3548445).

Almost surely, 215140024 is an apocalyptic number.

It is an amenable number.

15140024 is a deficient number, since it is larger than the sum of its proper divisors (13247536).

15140024 is a wasteful number, since it uses less digits than its factorization.

15140024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1892509 (or 1892505 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 15140024 is about 3891.0183756955. The cubic root of 15140024 is about 247.3862293820.

Adding to 15140024 its reverse (42004151), we get a palindrome (57144175).

The spelling of 15140024 in words is "fifteen million, one hundred forty thousand, twenty-four".

Divisors: 1 2 4 8 1892503 3785006 7570012 15140024