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1930234530 = 235731296503
BaseRepresentation
bin111001100001101…
…0000101010100010
311222112002001222210
41303003100222202
512423120001110
6515311342550
765555502630
oct16303205242
94875061883
101930234530
11900626854
1245a521a56
13249b8b513
141444d8350
15b46d1520
hex730d0aa2

1930234530 has 64 divisors (see below), whose sum is σ = 5465161728. Its totient is φ = 426962880.

The previous prime is 1930234487. The next prime is 1930234549. The reversal of 1930234530 is 354320391.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 141742 + ... + 154761.

It is an arithmetic number, because the mean of its divisors is an integer number (85393152).

Almost surely, 21930234530 is an apocalyptic number.

1930234530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1930234530 is an abundant number, since it is smaller than the sum of its proper divisors (3534927198).

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

1930234530 is a wasteful number, since it uses less digits than its factorization.

1930234530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296551.

The product of its (nonzero) digits is 9720, while the sum is 30.

The square root of 1930234530 is about 43934.4344449772. The cubic root of 1930234530 is about 1245.0974972436.

The spelling of 1930234530 in words is "one billion, nine hundred thirty million, two hundred thirty-four thousand, five hundred thirty".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 31 35 42 62 70 93 105 155 186 210 217 310 434 465 651 930 1085 1302 2170 3255 6510 296503 593006 889509 1482515 1779018 2075521 2965030 4151042 4447545 6226563 8895090 9191593 10377605 12453126 18383186 20755210 27574779 31132815 45957965 55149558 62265630 64341151 91915930 128682302 137873895 193023453 275747790 321705755 386046906 643411510 965117265 1930234530