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49219380 = 22335729449
BaseRepresentation
bin1011101111000…
…0011100110100
310102121121022000
42323300130310
5100100010010
64514535300
71135233510
oct273603464
9112547260
1049219380
1125868281
1214597530
13a273cc2
146773140
1544c37c0
hex2ef0734

49219380 has 192 divisors, whose sum is σ = 181440000. Its totient is φ = 10838016.

The previous prime is 49219327. The next prime is 49219397. The reversal of 49219380 is 8391294.

49219380 is a `hidden beast` number, since 492 + 1 + 93 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 109396 + ... + 109844.

It is an arithmetic number, because the mean of its divisors is an integer number (945000).

Almost surely, 249219380 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49219380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90720000).

49219380 is an abundant number, since it is smaller than the sum of its proper divisors (132220620).

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

49219380 is a wasteful number, since it uses less digits than its factorization.

49219380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 503 (or 495 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 49219380 is about 7015.6524999461. The cubic root of 49219380 is about 366.4758658366.

The spelling of 49219380 in words is "forty-nine million, two hundred nineteen thousand, three hundred eighty".