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73049031 = 3211267079
BaseRepresentation
bin1000101101010…
…10001111000111
312002110021102200
410112222033013
5122200032111
611125405543
71544622636
oct426521707
9162407380
1073049031
1138263900
12205698b3
13121985a3
1499b751d
15662e256
hex45aa3c7

73049031 has 18 divisors (see below), whose sum is σ = 115981320. Its totient is φ = 44271480.

The previous prime is 73049029. The next prime is 73049033. The reversal of 73049031 is 13094037.

It is an interprime number because it is at equal distance from previous prime (73049029) and next prime (73049033).

It is not a de Polignac number, because 73049031 - 21 = 73049029 is a prime.

It is a super-2 number, since 2×730490312 = 10672321860077922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 73048986 and 73049004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73049033) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 32451 + ... + 34628.

Almost surely, 273049031 is an apocalyptic number.

73049031 is a deficient number, since it is larger than the sum of its proper divisors (42932289).

73049031 is a wasteful number, since it uses less digits than its factorization.

73049031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67107 (or 67093 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 73049031 is about 8546.8725859229. The cubic root of 73049031 is about 418.0274681857.

The spelling of 73049031 in words is "seventy-three million, forty-nine thousand, thirty-one".

Divisors: 1 3 9 11 33 99 121 363 1089 67079 201237 603711 737869 2213607 6640821 8116559 24349677 73049031