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151430420 = 22517942299
BaseRepresentation
bin10010000011010…
…10010100010100
3101112221110111002
421001222110110
5302231233140
623005402432
73516065051
oct1101522424
9345843432
10151430420
1178529a09
1242869418
13254acccb
141617c028
15d463415
hex906a514

151430420 has 24 divisors (see below), whose sum is σ = 319788000. Its totient is φ = 60232352.

The previous prime is 151430417. The next prime is 151430449. The reversal of 151430420 is 24034151.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 151430392 and 151430401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17570 + ... + 24729.

It is an arithmetic number, because the mean of its divisors is an integer number (13324500).

Almost surely, 2151430420 is an apocalyptic number.

151430420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

151430420 is an abundant number, since it is smaller than the sum of its proper divisors (168357580).

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

151430420 is a wasteful number, since it uses less digits than its factorization.

151430420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42487 (or 42485 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 151430420 is about 12305.7068061936. The cubic root of 151430420 is about 533.0128864950.

Adding to 151430420 its reverse (24034151), we get a palindrome (175464571).

The spelling of 151430420 in words is "one hundred fifty-one million, four hundred thirty thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 179 358 716 895 1790 3580 42299 84598 169196 211495 422990 845980 7571521 15143042 30286084 37857605 75715210 151430420