Search a number
-
+
30901745592 = 2334411163119
BaseRepresentation
bin11100110001111000…
…110011011110111000
32221202121002022210000
4130301320303132320
51001241321324332
622110203353000
72142526334514
oct346170633670
987677068700
1030901745592
1112118258923
125ba4b22760
132bb6150183
1416d20db144
15c0cd9cb7c
hex731e337b8

30901745592 has 80 divisors (see below), whose sum is σ = 88664637600. Its totient is φ = 10049339520.

The previous prime is 30901745591. The next prime is 30901745617. The reversal of 30901745592 is 29554710903.

It is a happy number.

30901745592 is a `hidden beast` number, since 3 + 0 + 9 + 0 + 17 + 45 + 592 = 666.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30901745591) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 554992 + ... + 608127.

It is an arithmetic number, because the mean of its divisors is an integer number (1108307970).

Almost surely, 230901745592 is an apocalyptic number.

It is an amenable number.

30901745592 is an abundant number, since it is smaller than the sum of its proper divisors (57762892008).

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

30901745592 is a wasteful number, since it uses less digits than its factorization.

30901745592 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1163178 (or 1163165 counting only the distinct ones).

The product of its (nonzero) digits is 340200, while the sum is 45.

The spelling of 30901745592 in words is "thirty billion, nine hundred one million, seven hundred forty-five thousand, five hundred ninety-two".

Divisors: 1 2 3 4 6 8 9 12 18 24 27 36 41 54 72 81 82 108 123 162 164 216 246 324 328 369 492 648 738 984 1107 1476 2214 2952 3321 4428 6642 8856 13284 26568 1163119 2326238 3489357 4652476 6978714 9304952 10468071 13957428 20936142 27914856 31404213 41872284 47687879 62808426 83744568 94212639 95375758 125616852 143063637 188425278 190751516 251233704 286127274 376850556 381503032 429190911 572254548 753701112 858381822 1144509096 1287572733 1716763644 2575145466 3433527288 3862718199 5150290932 7725436398 10300581864 15450872796 30901745592