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537381530 = 2573156671
BaseRepresentation
bin100000000001111…
…100101010011010
31101110011210212122
4200001330222122
52100032202110
6125153541242
716213445000
oct4001745232
91343153778
10537381530
11256379774
1212bb74822
1387442b4a
1451526a70
153229e255
hex2007ca9a

537381530 has 32 divisors (see below), whose sum is σ = 1128038400. Its totient is φ = 184243920.

The previous prime is 537381529. The next prime is 537381539. The reversal of 537381530 is 35183735.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is not an unprimeable number, because it can be changed into a prime (537381539) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74906 + ... + 81765.

It is an arithmetic number, because the mean of its divisors is an integer number (35251200).

Almost surely, 2537381530 is an apocalyptic number.

537381530 is an abundant number, since it is smaller than the sum of its proper divisors (590656870).

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

537381530 is a wasteful number, since it uses less digits than its factorization.

537381530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156699 (or 156685 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 35.

The square root of 537381530 is about 23181.4911082096. The cubic root of 537381530 is about 813.0069256314.

The spelling of 537381530 in words is "five hundred thirty-seven million, three hundred eighty-one thousand, five hundred thirty".

Divisors: 1 2 5 7 10 14 35 49 70 98 245 343 490 686 1715 3430 156671 313342 783355 1096697 1566710 2193394 5483485 7676879 10966970 15353758 38384395 53738153 76768790 107476306 268690765 537381530