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42471480 = 2335353929
BaseRepresentation
bin1010001000000…
…1000000111000
32221220202220210
42202001000320
541333041410
64114151120
71024000362
oct242010070
987822823
1042471480
1121a794a7
12122824a0
138a5076c
1458d7d32
153ade220
hex2881038

42471480 has 32 divisors (see below), whose sum is σ = 127414800. Its totient is φ = 11325696.

The previous prime is 42471463. The next prime is 42471511. The reversal of 42471480 is 8417424.

It is a super-2 number, since 2×424714802 = 3607653226780800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 176845 + ... + 177084.

Almost surely, 242471480 is an apocalyptic number.

42471480 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42471480 is an abundant number, since it is smaller than the sum of its proper divisors (84943320).

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

42471480 is a wasteful number, since it uses less digits than its factorization.

42471480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353943 (or 353939 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 30.

The square root of 42471480 is about 6517.0146539654. The cubic root of 42471480 is about 348.8985236016.

The spelling of 42471480 in words is "forty-two million, four hundred seventy-one thousand, four hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 353929 707858 1061787 1415716 1769645 2123574 2831432 3539290 4247148 5308935 7078580 8494296 10617870 14157160 21235740 42471480