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1690607070 = 2325612931051
BaseRepresentation
bin110010011000100…
…1001110111011110
311100211011201220200
41210301021313132
511430243411240
6435431324330
756615631405
oct14461116736
94324151820
101690607070
11798338129
123b22206a6
1320c33b119
1412075c63c
159d64a930
hex64c49dde

1690607070 has 96 divisors (see below), whose sum is σ = 4487150304. Its totient is φ = 441504000.

The previous prime is 1690607069. The next prime is 1690607077. The reversal of 1690607070 is 707060961.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1690607077) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 1608045 + ... + 1609095.

It is an arithmetic number, because the mean of its divisors is an integer number (46741149).

Almost surely, 21690607070 is an apocalyptic number.

1690607070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1690607070, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2243575152).

1690607070 is an abundant number, since it is smaller than the sum of its proper divisors (2796543234).

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

1690607070 is a wasteful number, since it uses less digits than its factorization.

1690607070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1418 (or 1415 counting only the distinct ones).

The product of its (nonzero) digits is 15876, while the sum is 36.

The square root of 1690607070 is about 41116.9924726992. The cubic root of 1690607070 is about 1191.2810322651.

The spelling of 1690607070 in words is "one billion, six hundred ninety million, six hundred seven thousand, seventy".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 61 90 122 183 293 305 366 549 586 610 879 915 1051 1098 1465 1758 1830 2102 2637 2745 2930 3153 4395 5255 5274 5490 6306 8790 9459 10510 13185 15765 17873 18918 26370 31530 35746 47295 53619 64111 89365 94590 107238 128222 160857 178730 192333 268095 307943 320555 321714 384666 536190 576999 615886 641110 804285 923829 961665 1153998 1539715 1608570 1847658 1923330 2771487 2884995 3079430 4619145 5542974 5769990 9238290 13857435 18784523 27714870 37569046 56353569 93922615 112707138 169060707 187845230 281767845 338121414 563535690 845303535 1690607070