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1010142780 = 223516835713
BaseRepresentation
bin111100001101011…
…000111000111100
32121101202120101120
4330031120320330
54032044032110
6244122510540
734014033453
oct7415307074
92541676346
101010142780
11479221249
12242365450
1313137ba2a
149822bb9a
155da36870
hex3c358e3c

1010142780 has 24 divisors (see below), whose sum is σ = 2828399952. Its totient is φ = 269371392.

The previous prime is 1010142779. The next prime is 1010142797. The reversal of 1010142780 is 872410101.

It is a super-2 number, since 2×10101427802 = 2040776871972256800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1010142780.

It is a congruent number.

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, 8417797 + ... + 8417916.

It is an arithmetic number, because the mean of its divisors is an integer number (117849998).

Almost surely, 21010142780 is an apocalyptic number.

1010142780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1010142780 is an abundant number, since it is smaller than the sum of its proper divisors (1818257172).

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

1010142780 is a wasteful number, since it uses less digits than its factorization.

1010142780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16835725 (or 16835723 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 24.

The square root of 1010142780 is about 31782.7434309878. The cubic root of 1010142780 is about 1003.3695599796.

Adding to 1010142780 its reverse (872410101), we get a palindrome (1882552881).

The spelling of 1010142780 in words is "one billion, ten million, one hundred forty-two thousand, seven hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 16835713 33671426 50507139 67342852 84178565 101014278 168357130 202028556 252535695 336714260 505071390 1010142780