Search a number
-
+
474985278 = 23226388071
BaseRepresentation
bin11100010011111…
…011001100111110
31020002202202022100
4130103323030332
51433044012103
6115044325530
714525210505
oct3423731476
91202682270
10474985278
11224131519
121130a38a6
13775372a1
144712383c
152ba765a3
hex1c4fb33e

474985278 has 12 divisors (see below), whose sum is σ = 1029134808. Its totient is φ = 158328420.

The previous prime is 474985249. The next prime is 474985279. The reversal of 474985278 is 872589474.

It is a happy number.

It is a super-2 number, since 2×4749852782 = 451222028633474568, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (474985279) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13194018 + ... + 13194053.

It is an arithmetic number, because the mean of its divisors is an integer number (85761234).

Almost surely, 2474985278 is an apocalyptic number.

474985278 is an abundant number, since it is smaller than the sum of its proper divisors (554149530).

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

474985278 is a wasteful number, since it uses less digits than its factorization.

474985278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26388079 (or 26388076 counting only the distinct ones).

The product of its digits is 4515840, while the sum is 54.

The square root of 474985278 is about 21794.1569692429. The cubic root of 474985278 is about 780.2373143777.

The spelling of 474985278 in words is "four hundred seventy-four million, nine hundred eighty-five thousand, two hundred seventy-eight".

Divisors: 1 2 3 6 9 18 26388071 52776142 79164213 158328426 237492639 474985278