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1274742 = 232767151
BaseRepresentation
bin100110111001101110110
32101202121200
410313031312
5311242432
643153330
713556310
oct4671566
92352550
101274742
117a0807
12515846
133582b1
142527b0
151a2a7c
hex137376

1274742 has 48 divisors (see below), whose sum is σ = 3224832. Its totient is φ = 356400.

The previous prime is 1274737. The next prime is 1274759. The reversal of 1274742 is 2474721.

It is a happy number.

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 23 ways as a sum of consecutive naturals, for example, 8367 + ... + 8517.

It is an arithmetic number, because the mean of its divisors is an integer number (67184).

21274742 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1274742, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1612416).

1274742 is an abundant number, since it is smaller than the sum of its proper divisors (1950090).

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

1274742 is a wasteful number, since it uses less digits than its factorization.

1274742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233 (or 230 counting only the distinct ones).

The product of its digits is 3136, while the sum is 27.

The square root of 1274742 is about 1129.0447289634. The cubic root of 1274742 is about 108.4278297123.

It can be divided in two parts, 1274 and 742, that added together give a triangular number (2016 = T63).

The spelling of 1274742 in words is "one million, two hundred seventy-four thousand, seven hundred forty-two".

Divisors: 1 2 3 6 7 9 14 18 21 42 63 67 126 134 151 201 302 402 453 469 603 906 938 1057 1206 1359 1407 2114 2718 2814 3171 4221 6342 8442 9513 10117 19026 20234 30351 60702 70819 91053 141638 182106 212457 424914 637371 1274742