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229039749120 = 2113571381931
BaseRepresentation
bin1101010101001111010…
…1010011100000000000
3210220012011200210022010
43111103311103200000
512223033133432440
6253115220412520
722355550513420
oct3252365234000
9726164623263
10229039749120
1189153a70566
1238480b47140
13187a1783690
14b12aba8480
155e57b1e580
hex3553d53800

229039749120 has 384 divisors, whose sum is σ = 901855019520. Its totient is φ = 48324280320.

The previous prime is 229039749101. The next prime is 229039749137. The reversal of 229039749120 is 21947930922.

It is a tau number, because it is divible by the number of its divisors (384).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 229039749120.

It is a congruent 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, 2754555 + ... + 2836485.

It is an arithmetic number, because the mean of its divisors is an integer number (2348580780).

Almost surely, 2229039749120 is an apocalyptic number.

229039749120 is a gapful number since it is divisible by the number (20) 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 229039749120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (450927509760).

229039749120 is an abundant number, since it is smaller than the sum of its proper divisors (672815270400).

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

229039749120 is a wasteful number, since it uses less digits than its factorization.

229039749120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81981 (or 81961 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 48.

The spelling of 229039749120 in words is "two hundred twenty-nine billion, thirty-nine million, seven hundred forty-nine thousand, one hundred twenty".