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151839930 = 235111273623
BaseRepresentation
bin10010000110011…
…10010010111010
3101120201021020010
421003032102322
5302332334210
623022242350
73522422004
oct1103162272
9346637203
10151839930
1178789650
1242a263b6
13255c4518
1416247374
15d4e4920
hex90ce4ba

151839930 has 64 divisors (see below), whose sum is σ = 400785408. Its totient is φ = 36509760.

The previous prime is 151839929. The next prime is 151839931. The reversal of 151839930 is 39938151.

It is an interprime number because it is at equal distance from previous prime (151839929) and next prime (151839931).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (151839931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40099 + ... + 43721.

It is an arithmetic number, because the mean of its divisors is an integer number (6262272).

Almost surely, 2151839930 is an apocalyptic number.

151839930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 151839930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (200392704).

151839930 is an abundant number, since it is smaller than the sum of its proper divisors (248945478).

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

151839930 is a wasteful number, since it uses less digits than its factorization.

151839930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3771.

The product of its (nonzero) digits is 29160, while the sum is 39.

The square root of 151839930 is about 12322.3346002290. The cubic root of 151839930 is about 533.4929257638.

The spelling of 151839930 in words is "one hundred fifty-one million, eight hundred thirty-nine thousand, nine hundred thirty".

Divisors: 1 2 3 5 6 10 11 15 22 30 33 55 66 110 127 165 254 330 381 635 762 1270 1397 1905 2794 3623 3810 4191 6985 7246 8382 10869 13970 18115 20955 21738 36230 39853 41910 54345 79706 108690 119559 199265 239118 398530 460121 597795 920242 1195590 1380363 2300605 2760726 4601210 5061331 6901815 10122662 13803630 15183993 25306655 30367986 50613310 75919965 151839930