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194152940 = 2251033072
BaseRepresentation
bin10111001001010…
…00100111101100
3111112022222202122
423210220213230
5344200343230
631133212112
74545162362
oct1344504754
9445288678
10194152940
119a659a83
1255031038
13312baac7
141badd632
15120a1be5
hexb9289ec

194152940 has 36 divisors (see below), whose sum is σ = 413024976. Its totient is φ = 76656672.

The previous prime is 194152927. The next prime is 194152967. The reversal of 194152940 is 49251491.

194152940 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1941529402 = 75390728221287200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 194152940.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 632267 + ... + 632573.

It is an arithmetic number, because the mean of its divisors is an integer number (11472916).

Almost surely, 2194152940 is an apocalyptic number.

194152940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

194152940 is an abundant number, since it is smaller than the sum of its proper divisors (218872036).

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

194152940 is a wasteful number, since it uses less digits than its factorization.

194152940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 726 (or 417 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 35.

The square root of 194152940 is about 13933.8774215937. The cubic root of 194152940 is about 579.0481215778.

The spelling of 194152940 in words is "one hundred ninety-four million, one hundred fifty-two thousand, nine hundred forty".

Divisors: 1 2 4 5 10 20 103 206 307 412 515 614 1030 1228 1535 2060 3070 6140 31621 63242 94249 126484 158105 188498 316210 376996 471245 632420 942490 1884980 9707647 19415294 38830588 48538235 97076470 194152940