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151030818 = 235372227
BaseRepresentation
bin10010000000010…
…00110000100010
3101112012011100000
421000020300202
5302130441233
622553040430
73512512041
oct1100106042
9345164300
10151030818
1178286764
12426b6116
13253a0163
14160b6558
15d3d4d13
hex9008c22

151030818 has 72 divisors (see below), whose sum is σ = 350309232. Its totient is φ = 48767184.

The previous prime is 151030807. The next prime is 151030819. The reversal of 151030818 is 818030151.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 151030791 and 151030800.

It is not an unprimeable number, because it can be changed into a prime (151030819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 665221 + ... + 665447.

It is an arithmetic number, because the mean of its divisors is an integer number (4865406).

Almost surely, 2151030818 is an apocalyptic number.

151030818 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 151030818, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (175154616).

151030818 is an abundant number, since it is smaller than the sum of its proper divisors (199278414).

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

151030818 is an equidigital number, since it uses as much as digits as its factorization.

151030818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318 (or 269 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 27.

The square root of 151030818 is about 12289.4596301058. The cubic root of 151030818 is about 532.5436266578.

Adding to 151030818 its reverse (818030151), we get a palindrome (969060969).

The spelling of 151030818 in words is "one hundred fifty-one million, thirty thousand, eight hundred eighteen".

Divisors: 1 2 3 6 9 18 27 37 54 74 81 111 162 222 227 243 333 454 486 666 681 999 1362 1369 1998 2043 2738 2997 4086 4107 5994 6129 8214 8399 8991 12258 12321 16798 17982 18387 24642 25197 36774 36963 50394 55161 73926 75591 110322 110889 151182 221778 226773 310763 332667 453546 621526 665334 680319 932289 1360638 1864578 2040957 2796867 4081914 5593734 8390601 16781202 25171803 50343606 75515409 151030818