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424720953 = 32157300581
BaseRepresentation
bin11001010100001…
…011101000111001
31002121012001121200
4121110023220321
51332212032303
6110051124413
713345032336
oct3124135071
91077161550
10424720953
111a8820158
12ba2a3709
1369cb8797
144059b98d
15274483a3
hex1950ba39

424720953 has 12 divisors (see below), whose sum is σ = 617395428. Its totient is φ = 281342880.

The previous prime is 424720951. The next prime is 424720963. The reversal of 424720953 is 359027424.

It can be written as a sum of positive squares in 2 ways, for example, as 68757264 + 355963689 = 8292^2 + 18867^2 .

It is not a de Polignac number, because 424720953 - 21 = 424720951 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (424720951) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 148878 + ... + 151703.

It is an arithmetic number, because the mean of its divisors is an integer number (51449619).

Almost surely, 2424720953 is an apocalyptic number.

It is an amenable number.

424720953 is a deficient number, since it is larger than the sum of its proper divisors (192674475).

424720953 is a wasteful number, since it uses less digits than its factorization.

424720953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300744 (or 300741 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 424720953 is about 20608.7591329512. The cubic root of 424720953 is about 751.6827124815.

It can be divided in two parts, 4247 and 20953, that added together give a triangular number (25200 = T224).

The spelling of 424720953 in words is "four hundred twenty-four million, seven hundred twenty thousand, nine hundred fifty-three".

Divisors: 1 3 9 157 471 1413 300581 901743 2705229 47191217 141573651 424720953