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398877141 = 31310227619
BaseRepresentation
bin10111110001100…
…110000111010101
31000210120001120110
4113301212013111
51304103032031
6103325153233
712612254055
oct2761460725
91023501513
10398877141
11195179333
12b16bb819
136483a4a0
143ad91565
1525040c46
hex17c661d5

398877141 has 8 divisors (see below), whose sum is σ = 572746720. Its totient is φ = 245462832.

The previous prime is 398877119. The next prime is 398877161. The reversal of 398877141 is 141778893.

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

It is not a de Polignac number, because 398877141 - 217 = 398746069 is a prime.

It is a super-2 number, since 2×3988771412 = 318205947224667762, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398877161) 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, 5113771 + ... + 5113848.

It is an arithmetic number, because the mean of its divisors is an integer number (71593340).

Almost surely, 2398877141 is an apocalyptic number.

It is an amenable number.

398877141 is a deficient number, since it is larger than the sum of its proper divisors (173869579).

398877141 is a wasteful number, since it uses less digits than its factorization.

398877141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10227635.

The product of its digits is 338688, while the sum is 48.

The square root of 398877141 is about 19971.9087971080. The cubic root of 398877141 is about 736.1162122782.

The spelling of 398877141 in words is "three hundred ninety-eight million, eight hundred seventy-seven thousand, one hundred forty-one".

Divisors: 1 3 13 39 10227619 30682857 132959047 398877141