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48944978 = 257142859
BaseRepresentation
bin1011101010110…
…1011101010010
310102002122212222
42322231131102
5100012214403
64505021042
71133011505
oct272553522
9112078788
1048944978
11256a00a5
1214484782
13a1a9134
14670113c
15446c338
hex2ead752

48944978 has 8 divisors (see below), whose sum is σ = 73547760. Its totient is φ = 24429060.

The previous prime is 48944977. The next prime is 48944981. The reversal of 48944978 is 87944984.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×489449782 = 4791221742840968, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (48944971) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20288 + ... + 22571.

It is an arithmetic number, because the mean of its divisors is an integer number (9193470).

Almost surely, 248944978 is an apocalyptic number.

48944978 is a deficient number, since it is larger than the sum of its proper divisors (24602782).

48944978 is a wasteful number, since it uses less digits than its factorization.

48944978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43432.

The product of its digits is 2322432, while the sum is 53.

The square root of 48944978 is about 6996.0687532356. The cubic root of 48944978 is about 365.7935521396.

The spelling of 48944978 in words is "forty-eight million, nine hundred forty-four thousand, nine hundred seventy-eight".

Divisors: 1 2 571 1142 42859 85718 24472489 48944978