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29869768238 = 2131293938791
BaseRepresentation
bin11011110100011000…
…000111111000101110
32212002200020102222112
4123310120013320232
5442133130040423
621415540444022
72105125561262
oct336430077056
985080212875
1029869768238
1111738783a82
1259573a9612
132a803c7c9b
1416350280a2
15b9c4a1a78
hex6f4607e2e

29869768238 has 16 divisors (see below), whose sum is σ = 45163198080. Its totient is φ = 14815452600.

The previous prime is 29869768219. The next prime is 29869768259. The reversal of 29869768238 is 83286796892.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 750623 + ... + 789413.

It is an arithmetic number, because the mean of its divisors is an integer number (2822699880).

Almost surely, 229869768238 is an apocalyptic number.

29869768238 is a deficient number, since it is larger than the sum of its proper divisors (15293429842).

29869768238 is a wasteful number, since it uses less digits than its factorization.

29869768238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41863.

The product of its digits is 125411328, while the sum is 68.

The spelling of 29869768238 in words is "twenty-nine billion, eight hundred sixty-nine million, seven hundred sixty-eight thousand, two hundred thirty-eight".

Divisors: 1 2 131 262 2939 5878 38791 77582 385009 770018 5081621 10163242 114006749 228013498 14934884119 29869768238