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122122485 = 3453171137
BaseRepresentation
bin1110100011101…
…11000011110101
322111210110120000
413101313003311
5222230404420
620041301513
73012011142
oct721670365
9274713500
10122122485
1162a31481
1234a94899
131c3bb034
141230d3c9
15aac4690
hex74770f5

122122485 has 80 divisors (see below), whose sum is σ = 230833152. Its totient is φ = 61689600.

The previous prime is 122122471. The next prime is 122122493. The reversal of 122122485 is 584221221.

It is not a de Polignac number, because 122122485 - 25 = 122122453 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

122122485 is a Rhonda number in base 10.

Its product of digits (2560) is a multiple of the sum of its prime factors (256).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 891337 + ... + 891473.

Almost surely, 2122122485 is an apocalyptic number.

122122485 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

122122485 is a deficient number, since it is larger than the sum of its proper divisors (108710667).

122122485 is a wasteful number, since it uses less digits than its factorization.

122122485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256 (or 247 counting only the distinct ones).

The product of its digits is 2560, while the sum is 27.

The square root of 122122485 is about 11050.9042616430. The cubic root of 122122485 is about 496.1334906156.

The spelling of 122122485 in words is "one hundred twenty-two million, one hundred twenty-two thousand, four hundred eighty-five".

Divisors: 1 3 5 9 15 27 31 45 71 81 93 135 137 155 213 279 355 405 411 465 639 685 837 1065 1233 1395 1917 2055 2201 2511 3195 3699 4185 4247 5751 6165 6603 9585 9727 11005 11097 12555 12741 18495 19809 21235 28755 29181 33015 38223 48635 55485 59427 63705 87543 99045 114669 145905 178281 191115 262629 297135 301537 344007 437715 573345 787887 891405 904611 1313145 1507685 1720035 2713833 3939435 4523055 8141499 13569165 24424497 40707495 122122485