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142251352430 = 25112356225831
BaseRepresentation
bin1000010001111011010…
…1110110000101101110
3111121011202000102200112
42010132311312011232
54312312321234210
6145203244100022
713164056355005
oct2043665660556
9447152012615
10142251352430
11553681a8590
122369b834612
13105501334b5
146c56635c3c
153a786d3d05
hex211ed7616e

142251352430 has 32 divisors (see below), whose sum is σ = 291474713088. Its totient is φ = 49478730400.

The previous prime is 142251352429. The next prime is 142251352457. The reversal of 142251352430 is 34253152241.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28110386 + ... + 28115445.

It is an arithmetic number, because the mean of its divisors is an integer number (9108584784).

Almost surely, 2142251352430 is an apocalyptic number.

142251352430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142251352430 is an abundant number, since it is smaller than the sum of its proper divisors (149223360658).

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

142251352430 is a wasteful number, since it uses less digits than its factorization.

142251352430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56225872.

The product of its (nonzero) digits is 28800, while the sum is 32.

The spelling of 142251352430 in words is "one hundred forty-two billion, two hundred fifty-one million, three hundred fifty-two thousand, four hundred thirty".

Divisors: 1 2 5 10 11 22 23 46 55 110 115 230 253 506 1265 2530 56225831 112451662 281129155 562258310 618484141 1236968282 1293194113 2586388226 3092420705 6184841410 6465970565 12931941130 14225135243 28450270486 71125676215 142251352430