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151445140 = 225711432287
BaseRepresentation
bin10010000011011…
…01111010010100
3101112222012200021
421001231322110
5302232221030
623005554524
73516156010
oct1101557224
9345865607
10151445140
1178539a80
1242875a44
13254b6912
1416183540
15d46797a
hex906de94

151445140 has 96 divisors (see below), whose sum is σ = 405909504. Its totient is φ = 46085760.

The previous prime is 151445113. The next prime is 151445149. The reversal of 151445140 is 41544151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151445149) 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, 65077 + ... + 67363.

It is an arithmetic number, because the mean of its divisors is an integer number (4228224).

Almost surely, 2151445140 is an apocalyptic number.

151445140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 151445140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (202954752).

151445140 is an abundant number, since it is smaller than the sum of its proper divisors (254464364).

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

151445140 is a wasteful number, since it uses less digits than its factorization.

151445140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2357 (or 2355 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 151445140 is about 12306.3048881458. The cubic root of 151445140 is about 533.0301566831.

Adding to 151445140 its reverse (41544151), we get a palindrome (192989291).

The spelling of 151445140 in words is "one hundred fifty-one million, four hundred forty-five thousand, one hundred forty".

Divisors: 1 2 4 5 7 10 11 14 20 22 28 35 43 44 55 70 77 86 110 140 154 172 215 220 301 308 385 430 473 602 770 860 946 1204 1505 1540 1892 2287 2365 3010 3311 4574 4730 6020 6622 9148 9460 11435 13244 16009 16555 22870 25157 32018 33110 45740 50314 64036 66220 80045 98341 100628 125785 160090 176099 196682 251570 320180 352198 393364 491705 503140 688387 704396 880495 983410 1081751 1376774 1760990 1966820 2163502 2753548 3441935 3521980 4327004 5408755 6883870 7572257 10817510 13767740 15144514 21635020 30289028 37861285 75722570 151445140