Search a number
-
+
168807468419 = 1911877484923
BaseRepresentation
bin1001110100110110110…
…1011000110110000011
3121010201111000220022222
42131031231120312003
510231204202442134
6205314333521255
715124130543462
oct2351555306603
9533644026288
10168807468419
1165655462587
122887134322b
1312bc2b790b5
14825552c9d9
1545cecd7a2e
hex274db58d83

168807468419 has 8 divisors (see below), whose sum is σ = 177841794240. Its totient is φ = 159788114856.

The previous prime is 168807468409. The next prime is 168807468437. The reversal of 168807468419 is 914864708861.

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 168807468419 - 220 = 168806419843 is a prime.

It is a super-2 number, since 2×1688074684192 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (168807468409) 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, 3719909 + ... + 3765014.

It is an arithmetic number, because the mean of its divisors is an integer number (22230224280).

Almost surely, 2168807468419 is an apocalyptic number.

168807468419 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

168807468419 is a deficient number, since it is larger than the sum of its proper divisors (9034325821).

168807468419 is a wasteful number, since it uses less digits than its factorization.

168807468419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7486129.

The product of its (nonzero) digits is 18579456, while the sum is 62.

The spelling of 168807468419 in words is "one hundred sixty-eight billion, eight hundred seven million, four hundred sixty-eight thousand, four hundred nineteen".

Divisors: 1 19 1187 22553 7484923 142213537 8884603601 168807468419