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30012530723 = 723718319041
BaseRepresentation
bin11011111100111000…
…101110000000100011
32212110121212112021222
4123330320232000203
5442431201440343
621442040405255
72111511205400
oct337470560043
985417775258
1030012530723
11118013225aa
12599717682b
132aa3b61826
141649d8b2a7
15ba9ca1a68
hex6fce2e023

30012530723 has 24 divisors (see below), whose sum is σ = 35879668704. Its totient is φ = 25013318400.

The previous prime is 30012530707. The next prime is 30012530729. The reversal of 30012530723 is 32703521003.

It is not a de Polignac number, because 30012530723 - 24 = 30012530707 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30012530692 and 30012530701.

It is not an unprimeable number, because it can be changed into a prime (30012530729) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3315083 + ... + 3324123.

It is an arithmetic number, because the mean of its divisors is an integer number (1494986196).

Almost surely, 230012530723 is an apocalyptic number.

30012530723 is a deficient number, since it is larger than the sum of its proper divisors (5867137981).

30012530723 is a wasteful number, since it uses less digits than its factorization.

30012530723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10923 (or 10916 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 26.

The spelling of 30012530723 in words is "thirty billion, twelve million, five hundred thirty thousand, seven hundred twenty-three".

Divisors: 1 7 37 49 259 1813 1831 9041 12817 63287 67747 89719 334517 443009 474229 2341619 3319603 16391333 16554071 115878497 612500627 811149479 4287504389 30012530723