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1007681536 = 220312
BaseRepresentation
bin111100000100000…
…000000000000000
32121020010112012101
4330010000000000
54030431302121
6243554040144
733654103021
oct7404000000
92536115171
101007681536
114778a0064
12241579054
131309c9684
1497b8ac48
155d6ec491
hex3c100000

1007681536 has 63 divisors (see below), whose sum is σ = 2082470943. Its totient is φ = 487587840.

The previous prime is 1007681533. The next prime is 1007681537. The reversal of 1007681536 is 6351867001.

The square root of 1007681536 is 31744.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1007681495 and 1007681504.

It is not an unprimeable number, because it can be changed into a prime (1007681533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 32505841 + ... + 32505871.

Almost surely, 21007681536 is an apocalyptic number.

1007681536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

1007681536 is the 31744-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1007681536

1007681536 is an abundant number, since it is smaller than the sum of its proper divisors (1074789407).

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

1007681536 is an frugal number, since it uses more digits than its factorization.

1007681536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102 (or 33 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 37.

The cubic root of 1007681536 is about 1002.5539836146.

The spelling of 1007681536 in words is "one billion, seven million, six hundred eighty-one thousand, five hundred thirty-six".

Divisors: 1 2 4 8 16 31 32 62 64 124 128 248 256 496 512 961 992 1024 1922 1984 2048 3844 3968 4096 7688 7936 8192 15376 15872 16384 30752 31744 32768 61504 63488 65536 123008 126976 131072 246016 253952 262144 492032 507904 524288 984064 1015808 1048576 1968128 2031616 3936256 4063232 7872512 8126464 15745024 16252928 31490048 32505856 62980096 125960192 251920384 503840768 1007681536