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29211369040 = 245752163159
BaseRepresentation
bin11011001101001000…
…100001111001010000
32210101210100022002001
4123031020201321100
5434311102302130
621230341003344
72052612353140
oct331510417120
983353308061
1029211369040
1111430068a07
1257b29b3554
1329a6b92c69
1415b17dc920
15b5e79a6ca
hex6cd221e50

29211369040 has 40 divisors (see below), whose sum is σ = 77618782080. Its totient is φ = 10015326336.

The previous prime is 29211369013. The next prime is 29211369049. The reversal of 29211369040 is 4096311292.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29211369049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26081020 + ... + 26082139.

It is an arithmetic number, because the mean of its divisors is an integer number (1940469552).

Almost surely, 229211369040 is an apocalyptic number.

29211369040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29211369040 is an abundant number, since it is smaller than the sum of its proper divisors (48407413040).

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

29211369040 is a wasteful number, since it uses less digits than its factorization.

29211369040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52163179 (or 52163173 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 37.

The spelling of 29211369040 in words is "twenty-nine billion, two hundred eleven million, three hundred sixty-nine thousand, forty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 35 40 56 70 80 112 140 280 560 52163159 104326318 208652636 260815795 365142113 417305272 521631590 730284226 834610544 1043263180 1460568452 1825710565 2086526360 2921136904 3651421130 4173052720 5842273808 7302842260 14605684520 29211369040