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29028885730 = 25131061210461
BaseRepresentation
bin11011000010010000…
…011010010011100010
32202221001222012000221
4123002100122103202
5433422343320410
621200301433254
72045235312625
oct330220322342
982831865027
1029028885730
111134705a559
12576186b82a
13297812c980
141595499dbc
15b4d7514da
hex6c241a4e2

29028885730 has 32 divisors (see below), whose sum is σ = 56324682288. Its totient is φ = 10708204800.

The previous prime is 29028885719. The next prime is 29028885761. The reversal of 29028885730 is 3758882092.

It can be written as a sum of positive squares in 8 ways, for example, as 5599379241 + 23429506489 = 74829^2 + 153067^2 .

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, 32700 + ... + 243160.

Almost surely, 229028885730 is an apocalyptic number.

29028885730 is a deficient number, since it is larger than the sum of its proper divisors (27295796558).

29028885730 is a wasteful number, since it uses less digits than its factorization.

29028885730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211542.

The product of its (nonzero) digits is 1935360, while the sum is 52.

The spelling of 29028885730 in words is "twenty-nine billion, twenty-eight million, eight hundred eighty-five thousand, seven hundred thirty".

Divisors: 1 2 5 10 13 26 65 130 1061 2122 5305 10610 13793 27586 68965 137930 210461 420922 1052305 2104610 2735993 5471986 13679965 27359930 223299121 446598242 1116495605 2232991210 2902888573 5805777146 14514442865 29028885730