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192404420 = 225134991483
BaseRepresentation
bin10110111011111…
…01101111000100
3111102001011020122
423131331233010
5343223420140
631031521112
74524260555
oct1335755704
9442034218
10192404420
119967531a
1254529198
1330b27c90
141b7a632c
1511d58ab5
hexb77dbc4

192404420 has 48 divisors (see below), whose sum is σ = 436296000. Its totient is φ = 70851456.

The previous prime is 192404341. The next prime is 192404461. The reversal of 192404420 is 24404291.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a self number, because there is not a number n which added to its sum of digits gives 192404420.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 128999 + ... + 130481.

It is an arithmetic number, because the mean of its divisors is an integer number (9089500).

Almost surely, 2192404420 is an apocalyptic number.

192404420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 192404420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (218148000).

192404420 is an abundant number, since it is smaller than the sum of its proper divisors (243891580).

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

192404420 is a wasteful number, since it uses less digits than its factorization.

192404420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2004 (or 2002 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 192404420 is about 13870.9920337372. The cubic root of 192404420 is about 577.3045958467.

The spelling of 192404420 in words is "one hundred ninety-two million, four hundred four thousand, four hundred twenty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 499 998 1483 1996 2495 2966 4990 5932 6487 7415 9980 12974 14830 19279 25948 29660 32435 38558 64870 77116 96395 129740 192790 385580 740017 1480034 2960068 3700085 7400170 9620221 14800340 19240442 38480884 48101105 96202210 192404420