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741687138 = 233103133349
BaseRepresentation
bin101100001101010…
…011111101100010
31220200121121111000
4230031103331202
53004332442023
6201332532430
724244144113
oct5415237542
91820547430
10741687138
11350732585
12188481116
13ba876b3a
147070a20a
15451a9243
hex2c353f62

741687138 has 32 divisors (see below), whose sum is σ = 1664208000. Its totient is φ = 244826928.

The previous prime is 741687131. The next prime is 741687143. The reversal of 741687138 is 831786147.

It is a junction number, because it is equal to n+sod(n) for n = 741687093 and 741687102.

It is not an unprimeable number, because it can be changed into a prime (741687131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61113 + ... + 72236.

It is an arithmetic number, because the mean of its divisors is an integer number (52006500).

Almost surely, 2741687138 is an apocalyptic number.

741687138 is an abundant number, since it is smaller than the sum of its proper divisors (922520862).

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

741687138 is a wasteful number, since it uses less digits than its factorization.

741687138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133463 (or 133457 counting only the distinct ones).

The product of its digits is 225792, while the sum is 45.

The square root of 741687138 is about 27233.9335755965. The cubic root of 741687138 is about 905.1910458165.

Subtracting 741687138 from its reverse (831786147), we obtain a palindrome (90099009).

The spelling of 741687138 in words is "seven hundred forty-one million, six hundred eighty-seven thousand, one hundred thirty-eight".

Divisors: 1 2 3 6 9 18 27 54 103 206 309 618 927 1854 2781 5562 133349 266698 400047 800094 1200141 2400282 3600423 7200846 13734947 27469894 41204841 82409682 123614523 247229046 370843569 741687138