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30702749284 = 2279211092
BaseRepresentation
bin11100100110000001…
…101100011001100100
32221020201122021011101
4130212001230121210
51000334400434114
622034334245444
72134562030404
oct344601543144
987221567141
1030702749284
11120259a0a69
125b4a356884
132b83b5798c
1416b38da804
15bea690d74
hex72606c664

30702749284 has 27 divisors (see below), whose sum is σ = 54467658777. Its totient is φ = 15143386128.

The previous prime is 30702749267. The next prime is 30702749303. The reversal of 30702749284 is 48294720703.

The square root of 30702749284 is 175222.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 496309284 + 30206440000 = 22278^2 + 173800^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 27684522 + ... + 27685630.

Almost surely, 230702749284 is an apocalyptic number.

30702749284 is the 175222-nd square number.

It is an amenable number.

30702749284 is a deficient number, since it is larger than the sum of its proper divisors (23764909493).

30702749284 is an frugal number, since it uses more digits than its factorization.

30702749284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2380 (or 1190 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 46.

The spelling of 30702749284 in words is "thirty billion, seven hundred two million, seven hundred forty-nine thousand, two hundred eighty-four".

Divisors: 1 2 4 79 158 316 1109 2218 4436 6241 12482 24964 87611 175222 350444 1229881 2459762 4919524 6921269 13842538 27685076 97160599 194321198 388642396 7675687321 15351374642 30702749284