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30519242 = 2132275171
BaseRepresentation
bin111010001101…
…0111111001010
32010102112112022
41310122333022
530303103432
63010044442
7520260245
oct164327712
963375468
1030519242
1116255616
12a279722
136427430
1440a625c
152a2cb12
hex1d1afca

30519242 has 16 divisors (see below), whose sum is σ = 49527072. Its totient is φ = 14021040.

The previous prime is 30519217. The next prime is 30519259. The reversal of 30519242 is 24291503.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3317 + ... + 8487.

It is an arithmetic number, because the mean of its divisors is an integer number (3095442).

Almost surely, 230519242 is an apocalyptic number.

30519242 is a deficient number, since it is larger than the sum of its proper divisors (19007830).

30519242 is a wasteful number, since it uses less digits than its factorization.

30519242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5413.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 30519242 is about 5524.4223227411. The cubic root of 30519242 is about 312.5056792568.

The spelling of 30519242 in words is "thirty million, five hundred nineteen thousand, two hundred forty-two".

Divisors: 1 2 13 26 227 454 2951 5171 5902 10342 67223 134446 1173817 2347634 15259621 30519242