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520368148 = 22373516001
BaseRepresentation
bin11111000001000…
…011000000010100
31100021011102220101
4133001003000110
52031203240043
6123345143444
715616025206
oct3701030024
91307142811
10520368148
11247809323
1212632ab84
1383a66c61
144d178776
1530a3d24d
hex1f043014

520368148 has 12 divisors (see below), whose sum is σ = 935256532. Its totient is φ = 253152000.

The previous prime is 520368119. The next prime is 520368157. The reversal of 520368148 is 841863025.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 221354884 + 299013264 = 14878^2 + 17292^2 .

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1757853 + ... + 1758148.

Almost surely, 2520368148 is an apocalyptic number.

It is an amenable number.

520368148 is a deficient number, since it is larger than the sum of its proper divisors (414888384).

520368148 is a wasteful number, since it uses less digits than its factorization.

520368148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3516042 (or 3516040 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 37.

The square root of 520368148 is about 22811.5792526515. The cubic root of 520368148 is about 804.3348790207.

It can be divided in two parts, 5 and 20368148, that added together give a triangular number (20368153 = T6382).

The spelling of 520368148 in words is "five hundred twenty million, three hundred sixty-eight thousand, one hundred forty-eight".

Divisors: 1 2 4 37 74 148 3516001 7032002 14064004 130092037 260184074 520368148