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49970429838 = 2327396590713
BaseRepresentation
bin101110100010011110…
…000011111110001110
311202222112011211222200
4232202132003332032
51304314412223323
634542303422330
73416212434240
oct564236037616
9152875154880
1049970429838
111a2130065aa
129826bb49a6
1349348b85a4
1425c0834090
151476ea3443
hexba2783f8e

49970429838 has 24 divisors (see below), whose sum is σ = 123736302768. Its totient is φ = 14277265632.

The previous prime is 49970429827. The next prime is 49970429843. The reversal of 49970429838 is 83892407994.

49970429838 is a `hidden beast` number, since 49 + 97 + 0 + 429 + 83 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

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, 198295231 + ... + 198295482.

It is an arithmetic number, because the mean of its divisors is an integer number (5155679282).

Almost surely, 249970429838 is an apocalyptic number.

49970429838 is an abundant number, since it is smaller than the sum of its proper divisors (73765872930).

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

49970429838 is a wasteful number, since it uses less digits than its factorization.

49970429838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396590728 (or 396590725 counting only the distinct ones).

The product of its (nonzero) digits is 31352832, while the sum is 63.

The spelling of 49970429838 in words is "forty-nine billion, nine hundred seventy million, four hundred twenty-nine thousand, eight hundred thirty-eight".

Divisors: 1 2 3 6 7 9 14 18 21 42 63 126 396590713 793181426 1189772139 2379544278 2776134991 3569316417 5552269982 7138632834 8328404973 16656809946 24985214919 49970429838