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152540542 = 2711990523
BaseRepresentation
bin10010001011110…
…01010101111110
3101122000212021201
421011321111332
5303022244132
623045250114
73531400420
oct1105712576
9348025251
10152540542
1179117a70
124310393a
13257ab39b
141638a810
15d5d22e7
hex917957e

152540542 has 16 divisors (see below), whose sum is σ = 285270912. Its totient is φ = 59431320.

The previous prime is 152540539. The next prime is 152540543. The reversal of 152540542 is 245045251.

152540542 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 152540542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152540543) 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, 495108 + ... + 495415.

It is an arithmetic number, because the mean of its divisors is an integer number (17829432).

Almost surely, 2152540542 is an apocalyptic number.

152540542 is a deficient number, since it is larger than the sum of its proper divisors (132730370).

152540542 is a wasteful number, since it uses less digits than its factorization.

152540542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 990543.

The product of its (nonzero) digits is 8000, while the sum is 28.

The square root of 152540542 is about 12350.7304237442. The cubic root of 152540542 is about 534.3122055050.

Adding to 152540542 its reverse (245045251), we get a palindrome (397585793).

The spelling of 152540542 in words is "one hundred fifty-two million, five hundred forty thousand, five hundred forty-two".

Divisors: 1 2 7 11 14 22 77 154 990523 1981046 6933661 10895753 13867322 21791506 76270271 152540542