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151222330 = 25721937439
BaseRepresentation
bin10010000001101…
…11100000111010
3101112112220001001
421000313200322
5302203103310
623001115214
73514240300
oct1100674072
9345486031
10151222330
11783a7636
1242788b0a
132543938c
1416126270
15d42193a
hex903783a

151222330 has 96 divisors (see below), whose sum is σ = 343094400. Its totient is φ = 47682432.

The previous prime is 151222307. The next prime is 151222343. The reversal of 151222330 is 33222151.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a junction number, because it is equal to n+sod(n) for n = 151222298 and 151222307.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 344251 + ... + 344689.

It is an arithmetic number, because the mean of its divisors is an integer number (3573900).

Almost surely, 2151222330 is an apocalyptic number.

151222330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

151222330 is an abundant number, since it is smaller than the sum of its proper divisors (191872070).

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

151222330 is a wasteful number, since it uses less digits than its factorization.

151222330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 516 (or 509 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 151222330 is about 12297.2488793226. The cubic root of 151222330 is about 532.7686258080.

Adding to 151222330 its reverse (33222151), we get a palindrome (184444481).

The spelling of 151222330 in words is "one hundred fifty-one million, two hundred twenty-two thousand, three hundred thirty".

Divisors: 1 2 5 7 10 14 19 35 37 38 49 70 74 95 98 133 185 190 245 259 266 370 439 490 518 665 703 878 931 1295 1330 1406 1813 1862 2195 2590 3073 3515 3626 4390 4655 4921 6146 7030 8341 9065 9310 9842 15365 16243 16682 18130 21511 24605 30730 32486 34447 41705 43022 49210 58387 68894 81215 83410 107555 113701 116774 162430 172235 215110 227402 291935 308617 344470 408709 568505 583870 617234 795907 817418 1137010 1543085 1591814 2043545 2160319 3086170 3979535 4087090 4320638 7959070 10801595 15122233 21603190 30244466 75611165 151222330