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158405413 = 198337127
BaseRepresentation
bin10010111000100…
…01001100100101
3102001001211101011
421130101030211
5311022433123
623415102221
73632265235
oct1134211445
9361054334
10158405413
1181463371
1245071971
1326a82a1a
1417075cc5
15dd8ee0d
hex9711325

158405413 has 4 divisors (see below), whose sum is σ = 166742560. Its totient is φ = 150068268.

The previous prime is 158405411. The next prime is 158405419. The reversal of 158405413 is 314504851.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 314504851 = 769408979.

It is a cyclic number.

It is not a de Polignac number, because 158405413 - 21 = 158405411 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 (158405411) 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, 4168545 + ... + 4168582.

It is an arithmetic number, because the mean of its divisors is an integer number (41685640).

Almost surely, 2158405413 is an apocalyptic number.

It is an amenable number.

158405413 is a deficient number, since it is larger than the sum of its proper divisors (8337147).

158405413 is an equidigital number, since it uses as much as digits as its factorization.

158405413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8337146.

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 158405413 is about 12585.9212217461. The cubic root of 158405413 is about 541.0740090290.

The spelling of 158405413 in words is "one hundred fifty-eight million, four hundred five thousand, four hundred thirteen".

Divisors: 1 19 8337127 158405413