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30597626420 = 2251529881321
BaseRepresentation
bin11100011111110000…
…101011101000110100
32220222101211110200222
4130133300223220310
51000130443021140
622020101153512
72132144350634
oct343760535064
986871743628
1030597626420
1111a81620669
125b1b0bb898
132b6813c4ba
1416a39746c4
15be13285b5
hex71fc2ba34

30597626420 has 12 divisors (see below), whose sum is σ = 64255015524. Its totient is φ = 12239050560.

The previous prime is 30597626347. The next prime is 30597626473. The reversal of 30597626420 is 2462679503.

It can be written as a sum of positive squares in 2 ways, for example, as 7821987364 + 22775639056 = 88442^2 + 150916^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 764940641 + ... + 764940680.

It is an arithmetic number, because the mean of its divisors is an integer number (5354584627).

Almost surely, 230597626420 is an apocalyptic number.

It is an amenable number.

30597626420 is an abundant number, since it is smaller than the sum of its proper divisors (33657389104).

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

30597626420 is a wasteful number, since it uses less digits than its factorization.

30597626420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1529881330 (or 1529881328 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 44.

The spelling of 30597626420 in words is "thirty billion, five hundred ninety-seven million, six hundred twenty-six thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 1529881321 3059762642 6119525284 7649406605 15298813210 30597626420