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1226316630 = 2357211181419
BaseRepresentation
bin100100100011000…
…0001101101010110
310011110112100011110
41021012001231112
510002414113010
6321404115450
742250343100
oct11106015526
93143470143
101226316630
1157a250920
122a2835b86
131670a9a56
14b8c20570
15729d8120
hex49181b56

1226316630 has 192 divisors, whose sum is σ = 3764517120. Its totient is φ = 252806400.

The previous prime is 1226316629. The next prime is 1226316659. The reversal of 1226316630 is 366136221.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

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 95 ways as a sum of consecutive naturals, for example, 2926561 + ... + 2926979.

It is an arithmetic number, because the mean of its divisors is an integer number (19606860).

Almost surely, 21226316630 is an apocalyptic number.

1226316630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1226316630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1882258560).

1226316630 is an abundant number, since it is smaller than the sum of its proper divisors (2538200490).

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

1226316630 is a wasteful number, since it uses less digits than its factorization.

1226316630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 635 (or 628 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 1226316630 is about 35018.8039487359. The cubic root of 1226316630 is about 1070.3706841568.

The spelling of 1226316630 in words is "one billion, two hundred twenty-six million, three hundred sixteen thousand, six hundred thirty".