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190481457880 = 23571740017113
BaseRepresentation
bin1011000101100110010…
…1000110001011011000
3200012122222110122102101
42301121211012023120
511110101223123010
6223301142413144
716522210451230
oct2613145061330
9605588418371
10190481457880
11738678a966a
1230abba311b4
1314c682c412c
14930dc88cc0
154e4c9ba73a
hex2c599462d8

190481457880 has 64 divisors (see below), whose sum is σ = 518621797440. Its totient is φ = 61466284032.

The previous prime is 190481457871. The next prime is 190481457889. The reversal of 190481457880 is 88754184091.

It is an interprime number because it is at equal distance from previous prime (190481457871) and next prime (190481457889).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190481457889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20003797 + ... + 20013316.

It is an arithmetic number, because the mean of its divisors is an integer number (8103465585).

Almost surely, 2190481457880 is an apocalyptic number.

190481457880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

190481457880 is an abundant number, since it is smaller than the sum of its proper divisors (328140339560).

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

190481457880 is a wasteful number, since it uses less digits than its factorization.

190481457880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40017148 (or 40017144 counting only the distinct ones).

The product of its (nonzero) digits is 2580480, while the sum is 55.

The spelling of 190481457880 in words is "one hundred ninety billion, four hundred eighty-one million, four hundred fifty-seven thousand, eight hundred eighty".

Divisors: 1 2 4 5 7 8 10 14 17 20 28 34 35 40 56 68 70 85 119 136 140 170 238 280 340 476 595 680 952 1190 2380 4760 40017113 80034226 160068452 200085565 280119791 320136904 400171130 560239582 680290921 800342260 1120479164 1360581842 1400598955 1600684520 2240958328 2721163684 2801197910 3401454605 4762036447 5442327368 5602395820 6802909210 9524072894 11204791640 13605818420 19048145788 23810182235 27211636840 38096291576 47620364470 95240728940 190481457880