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147431430 = 23251638127
BaseRepresentation
bin10001100100110…
…10000000000110
3101021102021220100
420302122000012
5300220301210
622343544530
73440101146
oct1062320006
9337367810
10147431430
1176248463
124145b146
132470ca43
141581a926
15ce235c0
hex8c9a006

147431430 has 24 divisors (see below), whose sum is σ = 383321952. Its totient is φ = 39315024.

The previous prime is 147431413. The next prime is 147431483. The reversal of 147431430 is 34134741.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 147431394 and 147431403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 818974 + ... + 819153.

It is an arithmetic number, because the mean of its divisors is an integer number (15971748).

Almost surely, 2147431430 is an apocalyptic number.

147431430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

147431430 is an abundant number, since it is smaller than the sum of its proper divisors (235890522).

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

147431430 is a wasteful number, since it uses less digits than its factorization.

147431430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1638140 (or 1638137 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 147431430 is about 12142.1344911016. The cubic root of 147431430 is about 528.2790148944.

The spelling of 147431430 in words is "one hundred forty-seven million, four hundred thirty-one thousand, four hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 1638127 3276254 4914381 8190635 9828762 14743143 16381270 24571905 29486286 49143810 73715715 147431430