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1308677028 = 223317944531
BaseRepresentation
bin100111000000000…
…1101001110100100
310101012111200101120
41032000031032210
510140010131103
6333505253540
744300366631
oct11600151644
93335450346
101308677028
1161179446a
123063342b0
1317b185609
14c5b3d188
1579d56253
hex4e00d3a4

1308677028 has 48 divisors (see below), whose sum is σ = 3192053760. Its totient is φ = 416800800.

The previous prime is 1308677021. The next prime is 1308677033. The reversal of 1308677028 is 8207768031.

It is a super-2 number, since 2×13086770282 = 3425271127229825568, which contains 22 as substring.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1308677021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7123 + ... + 51653.

It is an arithmetic number, because the mean of its divisors is an integer number (66501120).

Almost surely, 21308677028 is an apocalyptic number.

It is an amenable number.

1308677028 is an abundant number, since it is smaller than the sum of its proper divisors (1883376732).

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

1308677028 is a wasteful number, since it uses less digits than its factorization.

1308677028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44648 (or 44646 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 42.

The square root of 1308677028 is about 36175.6413626628. The cubic root of 1308677028 is about 1093.8157175947.

The spelling of 1308677028 in words is "one billion, three hundred eight million, six hundred seventy-seven thousand, twenty-eight".

Divisors: 1 2 3 4 6 12 31 62 79 93 124 158 186 237 316 372 474 948 2449 4898 7347 9796 14694 29388 44531 89062 133593 178124 267186 534372 1380461 2760922 3517949 4141383 5521844 7035898 8282766 10553847 14071796 16565532 21107694 42215388 109056419 218112838 327169257 436225676 654338514 1308677028