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190957040 = 24523591759
BaseRepresentation
bin10110110000111…
…00010111110000
3111022022121210222
423120130113300
5342341111130
630540512212
74506052031
oct1330342760
9438277728
10190957040
119887693a
1253b4b668
133073c241
141b50aa88
1511b6ece5
hexb61c5f0

190957040 has 80 divisors (see below), whose sum is σ = 471398400. Its totient is φ = 71782656.

The previous prime is 190957027. The next prime is 190957043. The reversal of 190957040 is 40759091.

190957040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×1909570402 = 72929182251123200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190957043) 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, 107681 + ... + 109439.

It is an arithmetic number, because the mean of its divisors is an integer number (5892480).

Almost surely, 2190957040 is an apocalyptic number.

190957040 is a gapful number since it is divisible by the number (10) 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 190957040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (235699200).

190957040 is an abundant number, since it is smaller than the sum of its proper divisors (280441360).

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

190957040 is a wasteful number, since it uses less digits than its factorization.

190957040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1854 (or 1848 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 35.

The square root of 190957040 is about 13818.7206354279. The cubic root of 190957040 is about 575.8533416484.

The spelling of 190957040 in words is "one hundred ninety million, nine hundred fifty-seven thousand, forty".

Divisors: 1 2 4 5 8 10 16 20 23 40 46 59 80 92 115 118 184 230 236 295 368 460 472 590 920 944 1180 1357 1759 1840 2360 2714 3518 4720 5428 6785 7036 8795 10856 13570 14072 17590 21712 27140 28144 35180 40457 54280 70360 80914 103781 108560 140720 161828 202285 207562 323656 404570 415124 518905 647312 809140 830248 1037810 1618280 1660496 2075620 2386963 3236560 4151240 4773926 8302480 9547852 11934815 19095704 23869630 38191408 47739260 95478520 190957040