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1010813680 = 245191096101
BaseRepresentation
bin111100001111111…
…100101011110000
32121110000122200201
4330033330223300
54032232014210
6244145124544
734022526442
oct7417745360
92543018621
101010813680
1147963a308
12242629754
13131555206
1498364492
155db1a53a
hex3c3fcaf0

1010813680 has 80 divisors (see below), whose sum is σ = 2496938400. Its totient is φ = 379468800.

The previous prime is 1010813677. The next prime is 1010813681. The reversal of 1010813680 is 863180101.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1010813681) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 162630 + ... + 168730.

It is an arithmetic number, because the mean of its divisors is an integer number (31211730).

Almost surely, 21010813680 is an apocalyptic number.

1010813680 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 1010813680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1248469200).

1010813680 is an abundant number, since it is smaller than the sum of its proper divisors (1486124720).

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

1010813680 is a wasteful number, since it uses less digits than its factorization.

1010813680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6242 (or 6236 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 1010813680 is about 31793.2961487166. The cubic root of 1010813680 is about 1003.5916446448.

Adding to 1010813680 its reverse (863180101), we get a palindrome (1873993781).

The spelling of 1010813680 in words is "one billion, ten million, eight hundred thirteen thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 16 19 20 38 40 76 80 95 109 152 190 218 304 380 436 545 760 872 1090 1520 1744 2071 2180 4142 4360 6101 8284 8720 10355 12202 16568 20710 24404 30505 33136 41420 48808 61010 82840 97616 115919 122020 165680 231838 244040 463676 488080 579595 665009 927352 1159190 1330018 1854704 2318380 2660036 3325045 4636760 5320072 6650090 9273520 10640144 12635171 13300180 25270342 26600360 50540684 53200720 63175855 101081368 126351710 202162736 252703420 505406840 1010813680