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29888801965 = 511822166103
BaseRepresentation
bin11011110101100000…
…101110110010101101
32212011000001110100101
4123311200232302231
5442203013130330
621421500431101
72105446424221
oct336540566255
985130043311
1029888801965
11117484a4330
125961848491
132a84330649
141637780781
15b9deb14ca
hex6f582ecad

29888801965 has 16 divisors (see below), whose sum is σ = 39132510336. Its totient is φ = 21734337600.

The previous prime is 29888801897. The next prime is 29888802079. The reversal of 29888801965 is 56910888892.

It is not a de Polignac number, because 29888801965 - 27 = 29888801837 is a prime.

It is a super-2 number, since 2×298888019652 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 29888801897 and 29888801906.

It is a congruent number.

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, 419104 + ... + 485206.

It is an arithmetic number, because the mean of its divisors is an integer number (2445781896).

Almost surely, 229888801965 is an apocalyptic number.

It is an amenable number.

29888801965 is a deficient number, since it is larger than the sum of its proper divisors (9243708371).

29888801965 is a wasteful number, since it uses less digits than its factorization.

29888801965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74340.

The product of its (nonzero) digits is 19906560, while the sum is 64.

The spelling of 29888801965 in words is "twenty-nine billion, eight hundred eighty-eight million, eight hundred one thousand, nine hundred sixty-five".

Divisors: 1 5 11 55 8221 41105 66103 90431 330515 452155 727133 3635665 543432763 2717163815 5977760393 29888801965