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3045171990 = 235719763201
BaseRepresentation
bin1011010110000001…
…1010001100010110
321212020000202122210
42311200122030112
522214031000430
61222100334250
7135314351310
oct26540321426
97766022583
103045171990
111322a13873
1270b9a4386
13396b6c223
1420c6047b0
1512c5182b0
hexb581a316

3045171990 has 64 divisors (see below), whose sum is σ = 8792087040. Its totient is φ = 659404800.

The previous prime is 3045171959. The next prime is 3045172001. The reversal of 3045171990 is 991715403.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 377611 + ... + 385590.

It is an arithmetic number, because the mean of its divisors is an integer number (137376360).

Almost surely, 23045171990 is an apocalyptic number.

3045171990 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3045171990 is an abundant number, since it is smaller than the sum of its proper divisors (5746915050).

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

3045171990 is a wasteful number, since it uses less digits than its factorization.

3045171990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 763237.

The product of its (nonzero) digits is 34020, while the sum is 39.

The square root of 3045171990 is about 55183.0770254795. The cubic root of 3045171990 is about 1449.4523480778.

The spelling of 3045171990 in words is "three billion, forty-five million, one hundred seventy-one thousand, nine hundred ninety".

Divisors: 1 2 3 5 6 7 10 14 15 19 21 30 35 38 42 57 70 95 105 114 133 190 210 266 285 399 570 665 798 1330 1995 3990 763201 1526402 2289603 3816005 4579206 5342407 7632010 10684814 11448015 14500819 16027221 22896030 26712035 29001638 32054442 43502457 53424070 72504095 80136105 87004914 101505733 145008190 160272210 203011466 217512285 304517199 435024570 507528665 609034398 1015057330 1522585995 3045171990