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1390100030 = 251121767579
BaseRepresentation
bin101001011011011…
…0011111000111110
310120212201101202022
41102312303320332
510321331200110
6345534400142
746306440524
oct12266637076
93525641668
101390100030
11653747800
12329660052
13191cc35c7
14d2896314
158208b755
hex52db3e3e

1390100030 has 48 divisors (see below), whose sum is σ = 2912157360. Its totient is φ = 475749120.

The previous prime is 1390100029. The next prime is 1390100053. The reversal of 1390100030 is 300010931.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a junction number, because it is equal to n+sod(n) for n = 1390099981 and 1390100008.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13220 + ... + 54359.

It is an arithmetic number, because the mean of its divisors is an integer number (60669945).

Almost surely, 21390100030 is an apocalyptic number.

1390100030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1390100030 is an abundant number, since it is smaller than the sum of its proper divisors (1522057330).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1390100030 is a wasteful number, since it uses less digits than its factorization.

1390100030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67625 (or 67614 counting only the distinct ones).

The product of its (nonzero) digits is 81, while the sum is 17.

The square root of 1390100030 is about 37284.0452472636. The cubic root of 1390100030 is about 1116.0458003540.

Adding to 1390100030 its reverse (300010931), we get a palindrome (1690110961).

The spelling of 1390100030 in words is "one billion, three hundred ninety million, one hundred thousand, thirty".

Divisors: 1 2 5 10 11 17 22 34 55 85 110 121 170 187 242 374 605 935 1210 1870 2057 4114 10285 20570 67579 135158 337895 675790 743369 1148843 1486738 2297686 3716845 5744215 7433690 8177059 11488430 12637273 16354118 25274546 40885295 63186365 81770590 126372730 139010003 278020006 695050015 1390100030