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3045890 = 2517192341
BaseRepresentation
bin1011100111101000000010
312201202011202
423213220002
51234432030
6145141202
734614101
oct13475002
95652152
103045890
1117a0471
12102a802
13828503
14594038
15402745
hex2e7a02

3045890 has 64 divisors (see below), whose sum is σ = 6531840. Its totient is φ = 1013760.

The previous prime is 3045883. The next prime is 3045893. The reversal of 3045890 is 985403.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (3045893) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 74270 + ... + 74310.

It is an arithmetic number, because the mean of its divisors is an integer number (102060).

Almost surely, 23045890 is an apocalyptic number.

3045890 is an abundant number, since it is smaller than the sum of its proper divisors (3485950).

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

3045890 is a wasteful number, since it uses less digits than its factorization.

3045890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 3045890 is about 1745.2478334036. The cubic root of 3045890 is about 144.9566259487.

The spelling of 3045890 in words is "three million, forty-five thousand, eight hundred ninety".

Divisors: 1 2 5 10 17 19 23 34 38 41 46 82 85 95 115 170 190 205 230 323 391 410 437 646 697 779 782 874 943 1394 1558 1615 1886 1955 2185 3230 3485 3895 3910 4370 4715 6970 7429 7790 9430 13243 14858 16031 17917 26486 32062 35834 37145 66215 74290 80155 89585 132430 160310 179170 304589 609178 1522945 3045890