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253455051 = 3734212749
BaseRepresentation
bin11110001101101…
…10101011001011
3122122220211222010
433012312223023
51004341030201
641052231003
76165222003
oct1706665313
9578824863
10253455051
11120083593
1270a6b463
1340682205
1425939003
15173b7bd6
hexf1b6acb

253455051 has 16 divisors (see below), whose sum is σ = 343508000. Its totient is φ = 166199040.

The previous prime is 253455049. The next prime is 253455107. The reversal of 253455051 is 150554352.

It is a happy number.

It is not a de Polignac number, because 253455051 - 21 = 253455049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (253455011) 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 15 ways as a sum of consecutive naturals, for example, 90825 + ... + 93573.

It is an arithmetic number, because the mean of its divisors is an integer number (21469250).

Almost surely, 2253455051 is an apocalyptic number.

253455051 is a deficient number, since it is larger than the sum of its proper divisors (90052949).

253455051 is a wasteful number, since it uses less digits than its factorization.

253455051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3246.

The product of its (nonzero) digits is 15000, while the sum is 30.

The square root of 253455051 is about 15920.2716999428. The cubic root of 253455051 is about 632.8493186211.

The spelling of 253455051 in words is "two hundred fifty-three million, four hundred fifty-five thousand, fifty-one".

Divisors: 1 3 73 219 421 1263 2749 8247 30733 92199 200677 602031 1157329 3471987 84485017 253455051