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348671970 = 23253874133
BaseRepresentation
bin10100110010000…
…100111111100010
3220022002101000200
4110302010333202
51203230000340
654333130030
711432443233
oct2462047742
9808071020
10348671970
111698a8459
1298929916
135730c89a
143444308a
1520925330
hex14c84fe2

348671970 has 24 divisors (see below), whose sum is σ = 906547356. Its totient is φ = 92979168.

The previous prime is 348671969. The next prime is 348671971. The reversal of 348671970 is 79176843.

It is an interprime number because it is at equal distance from previous prime (348671969) and next prime (348671971).

It can be written as a sum of positive squares in 2 ways, for example, as 308107809 + 40564161 = 17553^2 + 6369^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (348671971) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1936977 + ... + 1937156.

Almost surely, 2348671970 is an apocalyptic number.

348671970 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

348671970 is an abundant number, since it is smaller than the sum of its proper divisors (557875386).

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

348671970 is a wasteful number, since it uses less digits than its factorization.

348671970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3874146 (or 3874143 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 45.

The square root of 348671970 is about 18672.7601066366. The cubic root of 348671970 is about 703.8374078393.

The spelling of 348671970 in words is "three hundred forty-eight million, six hundred seventy-one thousand, nine hundred seventy".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 3874133 7748266 11622399 19370665 23244798 34867197 38741330 58111995 69734394 116223990 174335985 348671970