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742047 = 33179101
BaseRepresentation
bin10110101001010011111
31101200220020
42311022133
5142221142
623523223
76210255
oct2651237
91350806
10742047
11467569
122b9513
131cc9a7
141545d5
15e9cec
hexb529f

742047 has 16 divisors (see below), whose sum is σ = 1044480. Its totient is φ = 468000.

The previous prime is 742037. The next prime is 742057. The reversal of 742047 is 740247.

It is an interprime number because it is at equal distance from previous prime (742037) and next prime (742057).

It is not a de Polignac number, because 742047 - 24 = 742031 is a prime.

742047 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (742037) 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, 7297 + ... + 7397.

It is an arithmetic number, because the mean of its divisors is an integer number (65280).

2742047 is an apocalyptic number.

742047 is a deficient number, since it is larger than the sum of its proper divisors (302433).

742047 is a wasteful number, since it uses less digits than its factorization.

742047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214.

The product of its (nonzero) digits is 1568, while the sum is 24.

The square root of 742047 is about 861.4214996156. The cubic root of 742047 is about 90.5337419840.

The spelling of 742047 in words is "seven hundred forty-two thousand, forty-seven", and thus it is an iban number.

Divisors: 1 3 31 79 93 101 237 303 2449 3131 7347 7979 9393 23937 247349 742047