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2670305988 = 223761521137
BaseRepresentation
bin1001111100101001…
…1010001011000100
320220002122121011210
42133022122023010
520432044242423
61120545531420
7123113140440
oct23712321304
96802577153
102670305988
111150355459
12626343b70
133372bab1c
141b4903820
1510966bb93
hex9f29a2c4

2670305988 has 48 divisors (see below), whose sum is σ = 7237564544. Its totient is φ = 750435840.

The previous prime is 2670305983. The next prime is 2670306007. The reversal of 2670305988 is 8895030762.

It is a super-2 number, since 2×26703059882 = 14261068139097312288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2670305983) 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, 255445 + ... + 265692.

Almost surely, 22670305988 is an apocalyptic number.

2670305988 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2670305988 is an abundant number, since it is smaller than the sum of its proper divisors (4567258556).

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

2670305988 is a wasteful number, since it uses less digits than its factorization.

2670305988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521212 (or 521210 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 48.

The square root of 2670305988 is about 51675.0035123366. The cubic root of 2670305988 is about 1387.3531030588.

The spelling of 2670305988 in words is "two billion, six hundred seventy million, three hundred five thousand, nine hundred eighty-eight".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 61 84 122 183 244 366 427 732 854 1281 1708 2562 5124 521137 1042274 1563411 2084548 3126822 3647959 6253644 7295918 10943877 14591836 21887754 31789357 43775508 63578714 95368071 127157428 190736142 222525499 381472284 445050998 667576497 890101996 1335152994 2670305988