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1007107780 = 225724212441
BaseRepresentation
bin111100000001110…
…011111011000100
32121012001101011011
4330001303323010
54030304422110
6243533452004
733646163200
oct7401637304
92535041134
101007107780
11477538a88
12241341004
13130858483
1497a7bb00
155d63748a
hex3c073ec4

1007107780 has 72 divisors (see below), whose sum is σ = 2467074456. Its totient is φ = 344332800.

The previous prime is 1007107771. The next prime is 1007107799. The reversal of 1007107780 is 877017001.

1007107780 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 72216004 + 934891776 = 8498^2 + 30576^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 411360 + ... + 413800.

It is an arithmetic number, because the mean of its divisors is an integer number (34264923).

Almost surely, 21007107780 is an apocalyptic number.

1007107780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1007107780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1233537228).

1007107780 is an abundant number, since it is smaller than the sum of its proper divisors (1459966676).

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

1007107780 is a wasteful number, since it uses less digits than its factorization.

1007107780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2885 (or 2876 counting only the distinct ones).

The product of its (nonzero) digits is 2744, while the sum is 31.

The square root of 1007107780 is about 31734.9614778402. The cubic root of 1007107780 is about 1002.3636686685.

The spelling of 1007107780 in words is "one billion, seven million, one hundred seven thousand, seven hundred eighty".

Divisors: 1 2 4 5 7 10 14 20 28 35 49 70 98 140 196 245 421 490 842 980 1684 2105 2441 2947 4210 4882 5894 8420 9764 11788 12205 14735 17087 20629 24410 29470 34174 41258 48820 58940 68348 82516 85435 103145 119609 170870 206290 239218 341740 412580 478436 598045 1027661 1196090 2055322 2392180 4110644 5138305 7193627 10276610 14387254 20553220 28774508 35968135 50355389 71936270 100710778 143872540 201421556 251776945 503553890 1007107780