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15072942 = 2315716001
BaseRepresentation
bin111001011111…
…111010101110
31001100210012010
4321133322232
512324313232
61255022050
7242055303
oct71377256
931323163
1015072942
118565585
12506a926
133179901
1420050aa
1514cb0cc
hexe5feae

15072942 has 16 divisors (see below), whose sum is σ = 30339792. Its totient is φ = 4992000.

The previous prime is 15072901. The next prime is 15072943. The reversal of 15072942 is 24927051.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15072943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7059 + ... + 8942.

It is an arithmetic number, because the mean of its divisors is an integer number (1896237).

Almost surely, 215072942 is an apocalyptic number.

15072942 is an abundant number, since it is smaller than the sum of its proper divisors (15266850).

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

15072942 is a wasteful number, since it uses less digits than its factorization.

15072942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16163.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 15072942 is about 3882.3886976963. The cubic root of 15072942 is about 247.0203177351.

Adding to 15072942 its reverse (24927051), we get a palindrome (39999993).

It can be divided in two parts, 15072 and 942, that multiplied together give a square (14197824 = 37682).

The spelling of 15072942 in words is "fifteen million, seventy-two thousand, nine hundred forty-two".

Divisors: 1 2 3 6 157 314 471 942 16001 32002 48003 96006 2512157 5024314 7536471 15072942