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74250729 = 337256123
BaseRepresentation
bin1000110110011…
…11100111101001
312011201022212000
410123033213221
5123002010404
611211241213
71561056300
oct433174751
9164638760
1074250729
1138a04743
1220a49209
13124c9557
149c0b437
1567ba339
hex46cf9e9

74250729 has 24 divisors (see below), whose sum is σ = 127962720. Its totient is φ = 42428232.

The previous prime is 74250719. The next prime is 74250751. The reversal of 74250729 is 92705247.

It is not a de Polignac number, because 74250729 - 25 = 74250697 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 74250693 and 74250702.

It is not an unprimeable number, because it can be changed into a prime (74250719) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26739 + ... + 29384.

It is an arithmetic number, because the mean of its divisors is an integer number (5331780).

Almost surely, 274250729 is an apocalyptic number.

It is an amenable number.

74250729 is a deficient number, since it is larger than the sum of its proper divisors (53711991).

74250729 is a wasteful number, since it uses less digits than its factorization.

74250729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56146 (or 56133 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 74250729 is about 8616.8862705736. The cubic root of 74250729 is about 420.3072751404.

The spelling of 74250729 in words is "seventy-four million, two hundred fifty thousand, seven hundred twenty-nine".

Divisors: 1 3 7 9 21 27 49 63 147 189 441 1323 56123 168369 392861 505107 1178583 1515321 2750027 3535749 8250081 10607247 24750243 74250729