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101226385 = 5132983647
BaseRepresentation
bin1100000100010…
…01011110010001
321001110211111101
412002021132101
5201403221020
614013344401
72336260441
oct602113621
9231424441
10101226385
1152159977
1229a98101
1317c82a90
14d630121
158d4800a
hex6089791

101226385 has 32 divisors (see below), whose sum is σ = 137168640. Its totient is φ = 71194368.

The previous prime is 101226383. The next prime is 101226397. The reversal of 101226385 is 583622101.

It is a cyclic number.

It is not a de Polignac number, because 101226385 - 21 = 101226383 is a prime.

It is not an unprimeable number, because it can be changed into a prime (101226383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 156132 + ... + 156778.

It is an arithmetic number, because the mean of its divisors is an integer number (4286520).

Almost surely, 2101226385 is an apocalyptic number.

It is an amenable number.

101226385 is a deficient number, since it is larger than the sum of its proper divisors (35942255).

101226385 is a wasteful number, since it uses less digits than its factorization.

101226385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 777.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 101226385 is about 10061.1323915353. The cubic root of 101226385 is about 466.0486373740.

Adding to 101226385 its reverse (583622101), we get a palindrome (684848486).

The spelling of 101226385 in words is "one hundred one million, two hundred twenty-six thousand, three hundred eighty-five".

Divisors: 1 5 13 29 65 83 145 377 415 647 1079 1885 2407 3235 5395 8411 12035 18763 31291 42055 53701 93815 156455 243919 268505 698113 1219595 1557329 3490565 7786645 20245277 101226385