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742655551 = 1167514141
BaseRepresentation
bin101100010001000…
…000011000111111
31220202102210220011
4230101000120333
53010104434201
6201405404051
724255316351
oct5421003077
91822383804
10742655551
11351234120
12188869627
13bab25871
14708bd0d1
15452eb151
hex2c44063f

742655551 has 4 divisors (see below), whose sum is σ = 810169704. Its totient is φ = 675141400.

The previous prime is 742655503. The next prime is 742655567. The reversal of 742655551 is 155556247.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 742655551 - 27 = 742655423 is a prime.

It is a super-2 number, since 2×7426555512 = 1103074534862227202, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (742655581) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 33757060 + ... + 33757081.

It is an arithmetic number, because the mean of its divisors is an integer number (202542426).

Almost surely, 2742655551 is an apocalyptic number.

742655551 is a deficient number, since it is larger than the sum of its proper divisors (67514153).

742655551 is a wasteful number, since it uses less digits than its factorization.

742655551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67514152.

The product of its digits is 210000, while the sum is 40.

The square root of 742655551 is about 27251.7073043140. The cubic root of 742655551 is about 905.5848405789.

The spelling of 742655551 in words is "seven hundred forty-two million, six hundred fifty-five thousand, five hundred fifty-one".

Divisors: 1 11 67514141 742655551