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1042607890 = 25109956521
BaseRepresentation
bin111110001001001…
…110111100010010
32200122211222011001
4332021032330102
54113401423030
6251242412214
734560010102
oct7611167422
92618758131
101042607890
11495585815
1225120106a
13138007a5c
149c67d202
15617eacca
hex3e24ef12

1042607890 has 16 divisors (see below), whose sum is σ = 1893913560. Its totient is φ = 413216640.

The previous prime is 1042607869. The next prime is 1042607911. The reversal of 1042607890 is 987062401.

It is an interprime number because it is at equal distance from previous prime (1042607869) and next prime (1042607911).

It can be written as a sum of positive squares in 4 ways, for example, as 1022528529 + 20079361 = 31977^2 + 4481^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 477171 + ... + 479350.

Almost surely, 21042607890 is an apocalyptic number.

1042607890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1042607890 is a deficient number, since it is larger than the sum of its proper divisors (851305670).

1042607890 is a wasteful number, since it uses less digits than its factorization.

1042607890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 956637.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 1042607890 is about 32289.4392952247. The cubic root of 1042607890 is about 1014.0055585725.

The spelling of 1042607890 in words is "one billion, forty-two million, six hundred seven thousand, eight hundred ninety".

Divisors: 1 2 5 10 109 218 545 1090 956521 1913042 4782605 9565210 104260789 208521578 521303945 1042607890