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45470420 = 22519119659
BaseRepresentation
bin1010110101110…
…1001011010100
310011120010200122
42231131023110
543120023140
64302331112
71061330552
oct255351324
9104503618
1045470420
1123737666
1213289a98
139560798
146078bd2
153ed2ab5
hex2b5d2d4

45470420 has 24 divisors (see below), whose sum is σ = 100514400. Its totient is φ = 17230752.

The previous prime is 45470419. The next prime is 45470423. The reversal of 45470420 is 2407454.

It is a self number, because there is not a number n which added to its sum of digits gives 45470420.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45470423) 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, 59450 + ... + 60209.

It is an arithmetic number, because the mean of its divisors is an integer number (4188100).

Almost surely, 245470420 is an apocalyptic number.

It is an amenable number.

45470420 is an abundant number, since it is smaller than the sum of its proper divisors (55043980).

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

45470420 is a wasteful number, since it uses less digits than its factorization.

45470420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119687 (or 119685 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 26.

The square root of 45470420 is about 6743.1758096612. The cubic root of 45470420 is about 356.9244688475.

Adding to 45470420 its reverse (2407454), we get a palindrome (47877874).

The spelling of 45470420 in words is "forty-five million, four hundred seventy thousand, four hundred twenty".

Divisors: 1 2 4 5 10 19 20 38 76 95 190 380 119659 239318 478636 598295 1196590 2273521 2393180 4547042 9094084 11367605 22735210 45470420