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340168815 = 3457971237
BaseRepresentation
bin10100010001101…
…001000001101111
3212201002100220000
4110101221001233
51144040400230
653430555343
711300246550
oct2421510157
9781070800
10340168815
1116501a958
1295b08b53
135562342c
143326c327
151ece5b60
hex1446906f

340168815 has 80 divisors (see below), whose sum is σ = 704649792. Its totient is φ = 153778176.

The previous prime is 340168789. The next prime is 340168817. The reversal of 340168815 is 518861043.

It is not a de Polignac number, because 340168815 - 25 = 340168783 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 340168815.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340168817) 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 79 ways as a sum of consecutive naturals, for example, 274377 + ... + 275613.

Almost surely, 2340168815 is an apocalyptic number.

340168815 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

340168815 is an abundant number, since it is smaller than the sum of its proper divisors (364480977).

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

340168815 is a wasteful number, since it uses less digits than its factorization.

340168815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1358 (or 1349 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 340168815 is about 18443.6659859151. The cubic root of 340168815 is about 698.0687002546.

The spelling of 340168815 in words is "three hundred forty million, one hundred sixty-eight thousand, eight hundred fifteen".

Divisors: 1 3 5 7 9 15 21 27 35 45 63 81 97 105 135 189 291 315 405 485 567 679 873 945 1237 1455 2037 2619 2835 3395 3711 4365 6111 6185 7857 8659 10185 11133 13095 18333 18555 25977 30555 33399 39285 43295 54999 55665 77931 91665 100197 119989 129885 166995 233793 274995 359967 389655 500985 599945 701379 839923 1079901 1168965 1799835 2519769 3239703 3506895 4199615 5399505 7559307 9719109 12598845 16198515 22677921 37796535 48595545 68033763 113389605 340168815