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319692140 = 22517940271
BaseRepresentation
bin10011000011100…
…001110101101100
3211021120001011122
4103003201311230
51123320122030
651420040112
710631224025
oct2303416554
9737501148
10319692140
11154504489
128b093038
1351304061
143065bc4c
151d0ed8e5
hex130e1d6c

319692140 has 24 divisors (see below), whose sum is σ = 710845632. Its totient is φ = 120354560.

The previous prime is 319692137. The next prime is 319692187. The reversal of 319692140 is 41296913.

It is a self number, because there is not a number n which added to its sum of digits gives 319692140.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 469796 + ... + 470475.

It is an arithmetic number, because the mean of its divisors is an integer number (29618568).

Almost surely, 2319692140 is an apocalyptic number.

It is an amenable number.

319692140 is an abundant number, since it is smaller than the sum of its proper divisors (391153492).

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

319692140 is a wasteful number, since it uses less digits than its factorization.

319692140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 940297 (or 940295 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 319692140 is about 17879.9368007832. The cubic root of 319692140 is about 683.7709611266.

The spelling of 319692140 in words is "three hundred nineteen million, six hundred ninety-two thousand, one hundred forty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 340 940271 1880542 3761084 4701355 9402710 15984607 18805420 31969214 63938428 79923035 159846070 319692140