Search a number
-
+
1007621031 = 31331325229
BaseRepresentation
bin111100000011110…
…001001110100111
32121020000110012110
4330003301032213
54030422333111
6243552452103
733653431434
oct7403611647
92536013173
101007621031
1147785965a
1224154a033
131309a7c81
1497b72b8b
155d6d95a6
hex3c0f13a7

1007621031 has 8 divisors (see below), whose sum is σ = 1343648880. Its totient is φ = 671670272.

The previous prime is 1007621009. The next prime is 1007621051. The reversal of 1007621031 is 1301267001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1007621031 - 26 = 1007620967 is a prime.

It is a super-2 number, since 2×10076210312 = 2030600284227005922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1007620989 and 1007621007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1007621051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27325 + ... + 52553.

It is an arithmetic number, because the mean of its divisors is an integer number (167956110).

Almost surely, 21007621031 is an apocalyptic number.

1007621031 is a deficient number, since it is larger than the sum of its proper divisors (336027849).

1007621031 is a wasteful number, since it uses less digits than its factorization.

1007621031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38545.

The product of its (nonzero) digits is 252, while the sum is 21.

The square root of 1007621031 is about 31743.0469709510. The cubic root of 1007621031 is about 1002.5339175055.

Adding to 1007621031 its reverse (1301267001), we get a palindrome (2308888032).

The spelling of 1007621031 in words is "one billion, seven million, six hundred twenty-one thousand, thirty-one".

Divisors: 1 3 13313 25229 39939 75687 335873677 1007621031