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195142008 = 23319795417
BaseRepresentation
bin10111010000110…
…10000101111000
3111121012020111210
423220122011320
5344424021013
631210323120
74556452065
oct1350320570
9447166453
10195142008
11a0175096
12554294a0
1331576059
141bcb9c6c
15121e9cc3
hexba1a178

195142008 has 64 divisors (see below), whose sum is σ = 520128000. Its totient is φ = 60832512.

The previous prime is 195141983. The next prime is 195142061. The reversal of 195142008 is 800241591.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33316 + ... + 38732.

It is an arithmetic number, because the mean of its divisors is an integer number (8127000).

Almost surely, 2195142008 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 195142008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (260064000).

195142008 is an abundant number, since it is smaller than the sum of its proper divisors (324985992).

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

195142008 is a wasteful number, since it uses less digits than its factorization.

195142008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5524 (or 5520 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 30.

The square root of 195142008 is about 13969.3238204288. The cubic root of 195142008 is about 580.0297329189.

Adding to 195142008 its reverse (800241591), we get a palindrome (995383599).

The spelling of 195142008 in words is "one hundred ninety-five million, one hundred forty-two thousand, eight".

Divisors: 1 2 3 4 6 8 12 19 24 38 57 76 79 114 152 158 228 237 316 456 474 632 948 1501 1896 3002 4503 5417 6004 9006 10834 12008 16251 18012 21668 32502 36024 43336 65004 102923 130008 205846 308769 411692 427943 617538 823384 855886 1235076 1283829 1711772 2470152 2567658 3423544 5135316 8130917 10270632 16261834 24392751 32523668 48785502 65047336 97571004 195142008