Search a number
-
+
168411214420 = 22531271630991
BaseRepresentation
bin1001110011011000010…
…1110011001001010100
3121002200212102010000221
42130312011303021110
510224401232330140
6205211140444124
715111246463141
oct2346605631124
9532625363027
10168411214420
1165471816039
12287806a9644
1312b5ba49887
148218a613c8
1545aa11414a
hex2736173254

168411214420 has 24 divisors (see below), whose sum is σ = 365072053248. Its totient is φ = 65191437600.

The previous prime is 168411214379. The next prime is 168411214457. The reversal of 168411214420 is 24412114861.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135814876 + ... + 135816115.

It is an arithmetic number, because the mean of its divisors is an integer number (15211335552).

Almost surely, 2168411214420 is an apocalyptic number.

168411214420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

168411214420 is an abundant number, since it is smaller than the sum of its proper divisors (196660838828).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

168411214420 is a wasteful number, since it uses less digits than its factorization.

168411214420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271631031 (or 271631029 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 34.

The spelling of 168411214420 in words is "one hundred sixty-eight billion, four hundred eleven million, two hundred fourteen thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 31 62 124 155 310 620 271630991 543261982 1086523964 1358154955 2716309910 5432619820 8420560721 16841121442 33682242884 42102803605 84205607210 168411214420