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299142148 = 22157503947
BaseRepresentation
bin10001110101001…
…000110000000100
3202211212222212211
4101311020300010
51103040022043
645403353204
710261444354
oct2165106004
9684788784
10299142148
11143948a18
1284222804
1349c8a4b6
142ba2cb64
151b3dea9d
hex11d48c04

299142148 has 24 divisors (see below), whose sum is σ = 528437952. Its totient is φ = 148166304.

The previous prime is 299142133. The next prime is 299142197. The reversal of 299142148 is 841241992.

It is a self number, because there is not a number n which added to its sum of digits gives 299142148.

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, 315411 + ... + 316357.

It is an arithmetic number, because the mean of its divisors is an integer number (22018248).

Almost surely, 2299142148 is an apocalyptic number.

It is an amenable number.

299142148 is a deficient number, since it is larger than the sum of its proper divisors (229295804).

299142148 is a wasteful number, since it uses less digits than its factorization.

299142148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1611 (or 1609 counting only the distinct ones).

The product of its digits is 41472, while the sum is 40.

The square root of 299142148 is about 17295.7262929314. The cubic root of 299142148 is about 668.7942582524.

The spelling of 299142148 in words is "two hundred ninety-nine million, one hundred forty-two thousand, one hundred forty-eight".

Divisors: 1 2 4 157 314 503 628 947 1006 1894 2012 3788 78971 148679 157942 297358 315884 476341 594716 952682 1905364 74785537 149571074 299142148