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2974587990 = 23511371791361
BaseRepresentation
bin1011000101001100…
…1001110001010110
321200022012201121120
42301103021301112
522042443303430
61211055424410
7133466403123
oct26123116126
97608181546
102974587990
111297093a90
126b0225106
1338535794a
142030ad74a
15126224610
hexb14c9c56

2974587990 has 128 divisors (see below), whose sum is σ = 8049093120. Its totient is φ = 697190400.

The previous prime is 2974587949. The next prime is 2974587991. The reversal of 2974587990 is 997854792.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2974587991) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2184910 + ... + 2186270.

It is an arithmetic number, because the mean of its divisors is an integer number (62883540).

Almost surely, 22974587990 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2974587990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4024546560).

2974587990 is an abundant number, since it is smaller than the sum of its proper divisors (5074505130).

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

2974587990 is a wasteful number, since it uses less digits than its factorization.

2974587990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1598.

The product of its (nonzero) digits is 11430720, while the sum is 60.

The square root of 2974587990 is about 54539.7835529258. The cubic root of 2974587990 is about 1438.1657442059.

The spelling of 2974587990 in words is "two billion, nine hundred seventy-four million, five hundred eighty-seven thousand, nine hundred ninety".

Divisors: 1 2 3 5 6 10 11 15 22 30 33 37 55 66 74 110 111 165 179 185 222 330 358 370 407 537 555 814 895 1074 1110 1221 1361 1790 1969 2035 2442 2685 2722 3938 4070 4083 5370 5907 6105 6623 6805 8166 9845 11814 12210 13246 13610 14971 19690 19869 20415 29535 29942 33115 39738 40830 44913 50357 59070 66230 72853 74855 89826 99345 100714 145706 149710 151071 198690 218559 224565 243619 251785 302142 364265 437118 449130 487238 503570 553927 728530 730857 755355 1092795 1107854 1218095 1461714 1510710 1661781 2185590 2436190 2679809 2769635 3323562 3654285 5359618 5539270 7308570 8039427 8308905 9013903 13399045 16078854 16617810 18027806 26798090 27041709 40197135 45069515 54083418 80394270 90139030 99152933 135208545 198305866 270417090 297458799 495764665 594917598 991529330 1487293995 2974587990