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305104542 = 231731472053
BaseRepresentation
bin10010001011111…
…000011010011110
3210021002220202020
4102023320122132
51111101321132
650135241010
710363226421
oct2213703236
9707086666
10305104542
11147250616
1286219166
134b297342
142c7419b8
151bbbb52c
hex122f869e

305104542 has 64 divisors (see below), whose sum is σ = 681467904. Its totient is φ = 90616320.

The previous prime is 305104531. The next prime is 305104543. The reversal of 305104542 is 245401503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305104543) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 147588 + ... + 149640.

It is an arithmetic number, because the mean of its divisors is an integer number (10647936).

Almost surely, 2305104542 is an apocalyptic number.

305104542 is an abundant number, since it is smaller than the sum of its proper divisors (376363362).

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

305104542 is a wasteful number, since it uses less digits than its factorization.

305104542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2153.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 305104542 is about 17467.2419688971. The cubic root of 305104542 is about 673.2084486117.

The spelling of 305104542 in words is "three hundred five million, one hundred four thousand, five hundred forty-two".

Divisors: 1 2 3 6 17 31 34 47 51 62 93 94 102 141 186 282 527 799 1054 1457 1581 1598 2053 2397 2914 3162 4106 4371 4794 6159 8742 12318 24769 34901 49538 63643 69802 74307 96491 104703 127286 148614 190929 192982 209406 289473 381858 578946 1081931 1640347 2163862 2991221 3245793 3280694 4921041 5982442 6491586 8973663 9842082 17947326 50850757 101701514 152552271 305104542