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1072407 = 37223229
BaseRepresentation
bin100000101110100010111
32000111001210
410011310113
5233304112
634552503
712054360
oct4056427
92014053
101072407
11672796
12438733
132b717b
141dcb67
15162b3c
hex105d17

1072407 has 16 divisors (see below), whose sum is σ = 1648640. Its totient is φ = 607392.

The previous prime is 1072397. The next prime is 1072429. The reversal of 1072407 is 7042701.

It is not a de Polignac number, because 1072407 - 212 = 1068311 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1072447) 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, 4569 + ... + 4797.

It is an arithmetic number, because the mean of its divisors is an integer number (103040).

21072407 is an apocalyptic number.

1072407 is a deficient number, since it is larger than the sum of its proper divisors (576233).

1072407 is a wasteful number, since it uses less digits than its factorization.

1072407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462.

The product of its (nonzero) digits is 392, while the sum is 21.

The square root of 1072407 is about 1035.5708570639. The cubic root of 1072407 is about 102.3575494921.

The spelling of 1072407 in words is "one million, seventy-two thousand, four hundred seven".

Divisors: 1 3 7 21 223 229 669 687 1561 1603 4683 4809 51067 153201 357469 1072407