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29892174018 = 23731167137477
BaseRepresentation
bin11011110101101101…
…100110000011000010
32212011020101202221020
4123311231212003002
5442204344032033
621422101010310
72105520200250
oct336555460302
985136352836
1029892174018
111174a397853
1259629b3996
132a84c41445
141637dbb5d0
15b9e42a6b3
hex6f5b660c2

29892174018 has 64 divisors (see below), whose sum is σ = 70951845888. Its totient is φ = 8215565760.

The previous prime is 29892174007. The next prime is 29892174079. The reversal of 29892174018 is 81047129892.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 148696 + ... + 286172.

It is an arithmetic number, because the mean of its divisors is an integer number (1108622592).

Almost surely, 229892174018 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 29892174018, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35475922944).

29892174018 is an abundant number, since it is smaller than the sum of its proper divisors (41059671870).

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

29892174018 is a wasteful number, since it uses less digits than its factorization.

29892174018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137687.

The product of its (nonzero) digits is 580608, while the sum is 51.

The spelling of 29892174018 in words is "twenty-nine billion, eight hundred ninety-two million, one hundred seventy-four thousand, eighteen".

Divisors: 1 2 3 6 7 14 21 31 42 62 93 167 186 217 334 434 501 651 1002 1169 1302 2338 3507 5177 7014 10354 15531 31062 36239 72478 108717 137477 217434 274954 412431 824862 962339 1924678 2887017 4261787 5774034 8523574 12785361 22958659 25570722 29832509 45917318 59665018 68875977 89497527 137751954 160710613 178995054 321421226 482131839 711718429 964263678 1423436858 2135155287 4270310574 4982029003 9964058006 14946087009 29892174018