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190141840 = 2457339539
BaseRepresentation
bin10110101010101…
…01010110010000
3111020210012120101
423111111112100
5342134014330
630511222144
74466115250
oct1325252620
9436705511
10190141840
119836a419
1253817954
1330515185
141b377960
1511a5d4ca
hexb555590

190141840 has 40 divisors (see below), whose sum is σ = 505235520. Its totient is φ = 65191296.

The previous prime is 190141813. The next prime is 190141841. The reversal of 190141840 is 48141091.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 190141799 and 190141808.

It is not an unprimeable number, because it can be changed into a prime (190141841) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 169210 + ... + 170329.

It is an arithmetic number, because the mean of its divisors is an integer number (12630888).

Almost surely, 2190141840 is an apocalyptic number.

190141840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

190141840 is an abundant number, since it is smaller than the sum of its proper divisors (315093680).

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

190141840 is a wasteful number, since it uses less digits than its factorization.

190141840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339559 (or 339553 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 190141840 is about 13789.1928697803. The cubic root of 190141840 is about 575.0327290759.

The spelling of 190141840 in words is "one hundred ninety million, one hundred forty-one thousand, eight hundred forty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 35 40 56 70 80 112 140 280 560 339539 679078 1358156 1697695 2376773 2716312 3395390 4753546 5432624 6790780 9507092 11883865 13581560 19014184 23767730 27163120 38028368 47535460 95070920 190141840