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2745030 = 235372473
BaseRepresentation
bin1010011110001011000110
312011110110210
422132023012
51200320110
6134500250
732222001
oct12361306
95143423
102745030
111605422
12b04686
137515a2
14516538
15393520
hex29e2c6

2745030 has 32 divisors (see below), whose sum is σ = 6768864. Its totient is φ = 711936.

The previous prime is 2745011. The next prime is 2745031. The reversal of 2745030 is 305472.

It is a happy number.

2745030 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 2744988 and 2745006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2745031) 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 15 ways as a sum of consecutive naturals, for example, 127 + ... + 2346.

It is an arithmetic number, because the mean of its divisors is an integer number (211527).

22745030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2745030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3384432).

2745030 is an abundant number, since it is smaller than the sum of its proper divisors (4023834).

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

2745030 is a wasteful number, since it uses less digits than its factorization.

2745030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2520.

The product of its (nonzero) digits is 840, while the sum is 21.

The square root of 2745030 is about 1656.8132061280. The cubic root of 2745030 is about 140.0175148155.

The spelling of 2745030 in words is "two million, seven hundred forty-five thousand, thirty".

Divisors: 1 2 3 5 6 10 15 30 37 74 111 185 222 370 555 1110 2473 4946 7419 12365 14838 24730 37095 74190 91501 183002 274503 457505 549006 915010 1372515 2745030