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3119431990 = 2543107151449
BaseRepresentation
bin1011100111101110…
…1100000100110110
322001101202120020011
42321323230010312
522342033310430
61233312130434
7140205506623
oct27173540466
98041676204
103119431990
111360924474
12730836a1a
133a936ca5c
1421841534a
15133cd622a
hexb9eec136

3119431990 has 64 divisors (see below), whose sum is σ = 5850662400. Its totient is φ = 1196697600.

The previous prime is 3119431981. The next prime is 3119432003. The reversal of 3119431990 is 991349113.

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, 6947286 + ... + 6947734.

It is an arithmetic number, because the mean of its divisors is an integer number (91416600).

Almost surely, 23119431990 is an apocalyptic number.

3119431990 is a deficient number, since it is larger than the sum of its proper divisors (2731230410).

3119431990 is a wasteful number, since it uses less digits than its factorization.

3119431990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 757.

The product of its (nonzero) digits is 26244, while the sum is 40.

The square root of 3119431990 is about 55851.8754385204. The cubic root of 3119431990 is about 1461.1400350160.

The spelling of 3119431990 in words is "three billion, one hundred nineteen million, four hundred thirty-one thousand, nine hundred ninety".

Divisors: 1 2 5 10 43 86 107 151 214 215 302 430 449 535 755 898 1070 1510 2245 4490 4601 6493 9202 12986 16157 19307 23005 32314 32465 38614 46010 48043 64930 67799 80785 96086 96535 135598 161570 193070 240215 338995 480430 677990 694751 1389502 2065849 2915357 3473755 4131698 5830714 6947510 7254493 10329245 14508986 14576785 20658490 29153570 36272465 72544930 311943199 623886398 1559715995 3119431990