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3145503140 = 2251325794691
BaseRepresentation
bin1011101101111100…
…1001000110100100
322010012211010010022
42323133021012210
522420222100030
61240043014312
7140643223043
oct27337110644
98105733108
103145503140
11137461107a
1273950a398
133b189a680
1421ba8055a
15136235de5
hexbb7c91a4

3145503140 has 48 divisors (see below), whose sum is σ = 7117951680. Its totient is φ = 1160718720.

The previous prime is 3145503121. The next prime is 3145503187. The reversal of 3145503140 is 413055413.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 668195 + ... + 672885.

It is an arithmetic number, because the mean of its divisors is an integer number (148290660).

Almost surely, 23145503140 is an apocalyptic number.

It is an amenable number.

3145503140 is an abundant number, since it is smaller than the sum of its proper divisors (3972448540).

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

3145503140 is a wasteful number, since it uses less digits than its factorization.

3145503140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7292 (or 7290 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 3145503140 is about 56084.7852808585. The cubic root of 3145503140 is about 1465.1993174667.

Adding to 3145503140 its reverse (413055413), we get a palindrome (3558558553).

The spelling of 3145503140 in words is "three billion, one hundred forty-five million, five hundred three thousand, one hundred forty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 2579 4691 5158 9382 10316 12895 18764 23455 25790 33527 46910 51580 60983 67054 93820 121966 134108 167635 243932 304915 335270 609830 670540 1219660 12098089 24196178 48392356 60490445 120980890 157275157 241961780 314550314 629100628 786375785 1572751570 3145503140