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3784272141 = 3137910112161
BaseRepresentation
bin1110000110001111…
…0110100100001101
3100202201202221110110
43201203312210031
530222233202031
61423302030233
7162530532246
oct34143664415
910681687413
103784272141
111672139741
12897418379
1348401b6b0
1427c839ccd
15172360c46
hexe18f690d

3784272141 has 32 divisors (see below), whose sum is σ = 5557547520. Its totient is φ = 2276352000.

The previous prime is 3784272109. The next prime is 3784272181. The reversal of 3784272141 is 1412724873.

3784272141 is digitally balanced in base 2, base 3 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3784272141 - 25 = 3784272109 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3784272141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3784272181) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 305101 + ... + 317261.

It is an arithmetic number, because the mean of its divisors is an integer number (173673360).

Almost surely, 23784272141 is an apocalyptic number.

It is an amenable number.

3784272141 is a deficient number, since it is larger than the sum of its proper divisors (1773275379).

3784272141 is a wasteful number, since it uses less digits than its factorization.

3784272141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12357.

The product of its digits is 75264, while the sum is 39.

The square root of 3784272141 is about 61516.4379739269. The cubic root of 3784272141 is about 1558.3348632304.

The spelling of 3784272141 in words is "three billion, seven hundred eighty-four million, two hundred seventy-two thousand, one hundred forty-one".

Divisors: 1 3 13 39 79 101 237 303 1027 1313 3081 3939 7979 12161 23937 36483 103727 158093 311181 474279 960719 1228261 2882157 3684783 12489347 15967393 37468041 47902179 97032619 291097857 1261424047 3784272141