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1029428633900 = 225229354975391
BaseRepresentation
bin11101111101011101011…
…10100110000100101100
310122102010122120220220202
432332232232212010230
5113331232212241100
62104525112133032
7134242126004342
oct16765656460454
93572118526822
101029428633900
1136763a699137
12147615697178
13760c817c294
1437b78a3d992
151bba012b7d5
hexefaeba612c

1029428633900 has 36 divisors (see below), whose sum is σ = 2310889801920. Its totient is φ = 397572436800.

The previous prime is 1029428633887. The next prime is 1029428633921. The reversal of 1029428633900 is 93368249201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 177484796 + ... + 177490595.

Almost surely, 21029428633900 is an apocalyptic number.

1029428633900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1029428633900 is an abundant number, since it is smaller than the sum of its proper divisors (1281461168020).

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

1029428633900 is a wasteful number, since it uses less digits than its factorization.

1029428633900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354975434 (or 354975427 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 47.

The spelling of 1029428633900 in words is "one trillion, twenty-nine billion, four hundred twenty-eight million, six hundred thirty-three thousand, nine hundred".

Divisors: 1 2 4 5 10 20 25 29 50 58 100 116 145 290 580 725 1450 2900 354975391 709950782 1419901564 1774876955 3549753910 7099507820 8874384775 10294286339 17748769550 20588572678 35497539100 41177145356 51471431695 102942863390 205885726780 257357158475 514714316950 1029428633900