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155012053 = 782726777
BaseRepresentation
bin10010011110101…
…00101111010101
3101210200102120011
421033110233111
5304140341203
623214240221
73561403120
oct1117245725
9353612504
10155012053
117a555939
1243ab6071
1326165311
14168313b7
15d91e76d
hex93d4bd5

155012053 has 8 divisors (see below), whose sum is σ = 177377472. Its totient is φ = 132701856.

The previous prime is 155012029. The next prime is 155012083. The reversal of 155012053 is 350210551.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 155012053 - 29 = 155011541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155012023) 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, 7600 + ... + 19177.

It is an arithmetic number, because the mean of its divisors is an integer number (22172184).

Almost surely, 2155012053 is an apocalyptic number.

It is an amenable number.

155012053 is a deficient number, since it is larger than the sum of its proper divisors (22365419).

155012053 is an equidigital number, since it uses as much as digits as its factorization.

155012053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27611.

The product of its (nonzero) digits is 750, while the sum is 22.

The square root of 155012053 is about 12450.3836487074. The cubic root of 155012053 is about 537.1824587731.

The spelling of 155012053 in words is "one hundred fifty-five million, twelve thousand, fifty-three".

Divisors: 1 7 827 5789 26777 187439 22144579 155012053