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152542100 = 22521525421
BaseRepresentation
bin10010001011110…
…01101110010100
3101122000221102102
421011321232110
5303022321400
623045301232
73531405104
oct1105715624
9348027372
10152542100
1179119157
1243104818
13257abcc9
141638b204
15d5d29d5
hex9179b94

152542100 has 18 divisors (see below), whose sum is σ = 331016574. Its totient is φ = 61016800.

The previous prime is 152542087. The next prime is 152542111. The reversal of 152542100 is 1245251.

152542100 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 53260804 + 99281296 = 7298^2 + 9964^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 762611 + ... + 762810.

Almost surely, 2152542100 is an apocalyptic number.

152542100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

152542100 is an abundant number, since it is smaller than the sum of its proper divisors (178474474).

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

152542100 is a wasteful number, since it uses less digits than its factorization.

152542100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1525435 (or 1525428 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 152542100 is about 12350.7934967758. The cubic root of 152542100 is about 534.3140245965.

Adding to 152542100 its reverse (1245251), we get a palindrome (153787351).

The spelling of 152542100 in words is "one hundred fifty-two million, five hundred forty-two thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 1525421 3050842 6101684 7627105 15254210 30508420 38135525 76271050 152542100