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30128682070 = 2531353327509
BaseRepresentation
bin11100000011110011…
…110011010001010110
32212202201102121222201
4130003303303101112
5443200420311240
621501350115114
72114421400144
oct340363632126
985681377881
1030128682070
1111860945853
125a0a04ba9a
132ac1c3ba36
14165b584594
15bb5096d9a
hex703cf3456

30128682070 has 32 divisors (see below), whose sum is σ = 55998915840. Its totient is φ = 11658990720.

The previous prime is 30128682061. The next prime is 30128682091. The reversal of 30128682070 is 7028682103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1081476 + ... + 1108984.

It is an arithmetic number, because the mean of its divisors is an integer number (1749966120).

Almost surely, 230128682070 is an apocalyptic number.

30128682070 is a deficient number, since it is larger than the sum of its proper divisors (25870233770).

30128682070 is a wasteful number, since it uses less digits than its factorization.

30128682070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31080.

The product of its (nonzero) digits is 32256, while the sum is 37.

The spelling of 30128682070 in words is "thirty billion, one hundred twenty-eight million, six hundred eighty-two thousand, seventy".

Divisors: 1 2 5 10 31 62 155 310 3533 7066 17665 27509 35330 55018 109523 137545 219046 275090 547615 852779 1095230 1705558 4263895 8527790 97189297 194378594 485946485 971892970 3012868207 6025736414 15064341035 30128682070