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1012038388 = 221481170837
BaseRepresentation
bin111100010100100…
…111101011110100
32121112022212200021
4330110213223310
54033040212023
6244231254524
734036120144
oct7424475364
92545285607
101012038388
1147a2a6469
12242b1a444
131318937aa
14985a2924
155dcad35d
hex3c527af4

1012038388 has 12 divisors (see below), whose sum is σ = 1772273412. Its totient is φ = 505674560.

The previous prime is 1012038361. The next prime is 1012038403. The reversal of 1012038388 is 8838302101.

It can be written as a sum of positive squares in 2 ways, for example, as 532778724 + 479259664 = 23082^2 + 21892^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79495 + ... + 91342.

It is an arithmetic number, because the mean of its divisors is an integer number (147689451).

Almost surely, 21012038388 is an apocalyptic number.

It is an amenable number.

1012038388 is a deficient number, since it is larger than the sum of its proper divisors (760235024).

1012038388 is a wasteful number, since it uses less digits than its factorization.

1012038388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172322 (or 172320 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 1012038388 is about 31812.5507936726. The cubic root of 1012038388 is about 1003.9968003051.

The spelling of 1012038388 in words is "one billion, twelve million, thirty-eight thousand, three hundred eighty-eight".

Divisors: 1 2 4 1481 2962 5924 170837 341674 683348 253009597 506019194 1012038388