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73007397 = 3250915937
BaseRepresentation
bin1000101101000…
…00000100100101
312002101011022200
410112200010211
5122142214042
611124445113
71544360361
oct426400445
9162334280
1073007397
11382355a1
1220549799
1312182658
1499a62a1
156621c4c
hex45a0125

73007397 has 12 divisors (see below), whose sum is σ = 105668940. Its totient is φ = 48572928.

The previous prime is 73007393. The next prime is 73007411. The reversal of 73007397 is 79370037.

It can be written as a sum of positive squares in 2 ways, for example, as 55442916 + 17564481 = 7446^2 + 4191^2 .

It is not a de Polignac number, because 73007397 - 22 = 73007393 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73007393) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3388 + ... + 12549.

It is an arithmetic number, because the mean of its divisors is an integer number (8805745).

Almost surely, 273007397 is an apocalyptic number.

It is an amenable number.

73007397 is a deficient number, since it is larger than the sum of its proper divisors (32661543).

73007397 is a wasteful number, since it uses less digits than its factorization.

73007397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16452 (or 16449 counting only the distinct ones).

The product of its (nonzero) digits is 27783, while the sum is 36.

The square root of 73007397 is about 8544.4366110353. The cubic root of 73007397 is about 417.9480354043.

The spelling of 73007397 in words is "seventy-three million, seven thousand, three hundred ninety-seven".

Divisors: 1 3 9 509 1527 4581 15937 47811 143433 8111933 24335799 73007397