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161104308 = 223172772851
BaseRepresentation
bin10011001101001…
…00000110110100
3102020010221120020
421212210012310
5312220314213
623553005140
73664235601
oct1146440664
9366127506
10161104308
1182a37062
1245b537b0
13274b92c1
14175796a8
15e224923
hex99a41b4

161104308 has 48 divisors (see below), whose sum is σ = 399599424. Its totient is φ = 50342400.

The previous prime is 161104301. The next prime is 161104373. The reversal of 161104308 is 803401161.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161104301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55083 + ... + 57933.

It is an arithmetic number, because the mean of its divisors is an integer number (8324988).

Almost surely, 2161104308 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 161104308, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (199799712).

161104308 is an abundant number, since it is smaller than the sum of its proper divisors (238495116).

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

161104308 is a wasteful number, since it uses less digits than its factorization.

161104308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3152 (or 3150 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 161104308 is about 12692.6871859351. The cubic root of 161104308 is about 544.1296412840.

Adding to 161104308 its reverse (803401161), we get a palindrome (964505469).

The spelling of 161104308 in words is "one hundred sixty-one million, one hundred four thousand, three hundred eight".

Divisors: 1 2 3 4 6 12 17 34 51 68 102 204 277 554 831 1108 1662 2851 3324 4709 5702 8553 9418 11404 14127 17106 18836 28254 34212 48467 56508 96934 145401 193868 290802 581604 789727 1579454 2369181 3158908 4738362 9476724 13425359 26850718 40276077 53701436 80552154 161104308