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1490723976 = 233726333739
BaseRepresentation
bin101100011011010…
…1010010010001000
310211220001121212010
41120312222102020
511023111131401
6403531215520
751640642020
oct13066522210
93756047763
101490723976
116a5524a95
123572a75a0
131a9ac50c1
14101daaa80
158ad15ed6
hex58daa488

1490723976 has 64 divisors (see below), whose sum is σ = 4275532800. Its totient is φ = 424289088.

The previous prime is 1490723963. The next prime is 1490723977. The reversal of 1490723976 is 6793270941.

It is a happy number.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1490723977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27315 + ... + 61053.

It is an arithmetic number, because the mean of its divisors is an integer number (66805200).

Almost surely, 21490723976 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1490723976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2137766400).

1490723976 is an abundant number, since it is smaller than the sum of its proper divisors (2784808824).

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

1490723976 is a wasteful number, since it uses less digits than its factorization.

1490723976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34018 (or 34014 counting only the distinct ones).

The product of its (nonzero) digits is 571536, while the sum is 48.

The square root of 1490723976 is about 38609.8947939515. The cubic root of 1490723976 is about 1142.3497180181.

It can be divided in two parts, 14907 and 23976, that added together give a palindrome (38883).

The spelling of 1490723976 in words is "one billion, four hundred ninety million, seven hundred twenty-three thousand, nine hundred seventy-six".

Divisors: 1 2 3 4 6 7 8 12 14 21 24 28 42 56 84 168 263 526 789 1052 1578 1841 2104 3156 3682 5523 6312 7364 11046 14728 22092 33739 44184 67478 101217 134956 202434 236173 269912 404868 472346 708519 809736 944692 1417038 1889384 2834076 5668152 8873357 17746714 26620071 35493428 53240142 62113499 70986856 106480284 124226998 186340497 212960568 248453996 372680994 496907992 745361988 1490723976