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152205461 = 521292141
BaseRepresentation
bin10010001001001…
…11100010010101
3101121101211122022
421010213202111
5302431033321
623034142525
73525503462
oct1104474225
9347354568
10152205461
1178a09241
1242b81a45
13256c1a05
1416300669
15d567dab
hex9127895

152205461 has 4 divisors (see below), whose sum is σ = 152498124. Its totient is φ = 151912800.

The previous prime is 152205451. The next prime is 152205491. The reversal of 152205461 is 164502251.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 67749361 + 84456100 = 8231^2 + 9190^2 .

It is a cyclic number.

It is not a de Polignac number, because 152205461 - 214 = 152189077 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 152205461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152205401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145550 + ... + 146591.

It is an arithmetic number, because the mean of its divisors is an integer number (38124531).

Almost surely, 2152205461 is an apocalyptic number.

It is an amenable number.

152205461 is a deficient number, since it is larger than the sum of its proper divisors (292663).

152205461 is an equidigital number, since it uses as much as digits as its factorization.

152205461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292662.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 152205461 is about 12337.1577358807. The cubic root of 152205461 is about 533.9206830905.

The spelling of 152205461 in words is "one hundred fifty-two million, two hundred five thousand, four hundred sixty-one".

Divisors: 1 521 292141 152205461