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29028906036 = 223413173710957
BaseRepresentation
bin11011000010010000…
…011111010000110100
32202221002000012220000
4123002100133100310
5433422344443121
621200302111300
72045235426054
oct330220372064
982832005800
1029028906036
1111347073839
12576187b530
132978138ca0
1415954a3564
15b4d757526
hex6c241f434

29028906036 has 240 divisors, whose sum is σ = 88878935376. Its totient is φ = 8178610176.

The previous prime is 29028906029. The next prime is 29028906037. The reversal of 29028906036 is 63060982092.

It can be written as a sum of positive squares in 8 ways, for example, as 1665129636 + 27363776400 = 40806^2 + 165420^2 .

It is a junction number, because it is equal to n+sod(n) for n = 29028905982 and 29028906000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29028906037) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 2643870 + ... + 2654826.

Almost surely, 229028906036 is an apocalyptic number.

29028906036 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 29028906036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44439467688).

29028906036 is an abundant number, since it is smaller than the sum of its proper divisors (59850029340).

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

29028906036 is a wasteful number, since it uses less digits than its factorization.

29028906036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11040 (or 11029 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The spelling of 29028906036 in words is "twenty-nine billion, twenty-eight million, nine hundred six thousand, thirty-six".