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420153354 = 232311395417
BaseRepresentation
bin11001000010110…
…000100000001010
31002021121000001100
4121002300200022
51330024401404
6105405202230
713261146615
oct3102604012
91067530040
10420153354
111a6190485
12b8860376
136907976a
143db2d17c
1526d44d39
hex190b080a

420153354 has 48 divisors (see below), whose sum is σ = 946632960. Its totient is φ = 134533440.

The previous prime is 420153353. The next prime is 420153361. The reversal of 420153354 is 453351024.

It is not an unprimeable number, because it can be changed into a prime (420153353) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 74854 + ... + 80270.

It is an arithmetic number, because the mean of its divisors is an integer number (19721520).

Almost surely, 2420153354 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 420153354, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (473316480).

420153354 is an abundant number, since it is smaller than the sum of its proper divisors (526479606).

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

420153354 is a wasteful number, since it uses less digits than its factorization.

420153354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5595 (or 5592 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 420153354 is about 20497.6426449482. The cubic root of 420153354 is about 748.9783743399.

It can be divided in two parts, 42015 and 3354, that added together give a square (45369 = 2132).

The spelling of 420153354 in words is "four hundred twenty million, one hundred fifty-three thousand, three hundred fifty-four".

Divisors: 1 2 3 6 9 18 31 62 93 139 186 278 279 417 558 834 1251 2502 4309 5417 8618 10834 12927 16251 25854 32502 38781 48753 77562 97506 167927 335854 503781 752963 1007562 1505926 1511343 2258889 3022686 4517778 6776667 13553334 23341853 46683706 70025559 140051118 210076677 420153354