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153055407 = 3197258977
BaseRepresentation
bin10010001111101…
…11000010101111
3101200000000112210
421013313002233
5303140233112
623104301503
73535643451
oct1107670257
9350000483
10153055407
117943987a
1243311893
132592b83b
14164822d1
15d684b3c
hex91f70af

153055407 has 8 divisors (see below), whose sum is σ = 205110576. Its totient is φ = 101518592.

The previous prime is 153055387. The next prime is 153055411. The reversal of 153055407 is 704550351.

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

It is a cyclic number.

It is not a de Polignac number, because 153055407 - 28 = 153055151 is a prime.

It is a super-2 number, since 2×1530554072 = 46851915223871298, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (153055307) 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, 128898 + ... + 130079.

It is an arithmetic number, because the mean of its divisors is an integer number (25638822).

Almost surely, 2153055407 is an apocalyptic number.

153055407 is a deficient number, since it is larger than the sum of its proper divisors (52055169).

153055407 is a wasteful number, since it uses less digits than its factorization.

153055407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259177.

The product of its (nonzero) digits is 10500, while the sum is 30.

The square root of 153055407 is about 12371.5563693498. The cubic root of 153055407 is about 534.9126791425.

The spelling of 153055407 in words is "one hundred fifty-three million, fifty-five thousand, four hundred seven".

Divisors: 1 3 197 591 258977 776931 51018469 153055407